<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8" />
<title>SeaGlassScrollPaneUI xref</title>
<link type="text/css" rel="stylesheet" href="../../../stylesheet.css" />
</head>
<body>
<div id="overview"><a href="../../../../apidocs/com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">View Javadoc</a></div><pre>

<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> * Copyright (c) 2009 Kathryn Huxtable and Kenneth Orr.</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> * This file is part of the SeaGlass Pluggable Look and Feel.</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> * Licensed under the Apache License, Version 2.0 (the "License");</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> * you may not use this file except in compliance with the License.</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> * You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> *     <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> * See the License for the specific language governing permissions and</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <em class="jxr_comment"> * limitations under the License.</em>
<a class="jxr_linenumber" name="17" href="#17">17</a>  <em class="jxr_comment"> * </em>
<a class="jxr_linenumber" name="18" href="#18">18</a>  <em class="jxr_comment"> * $Id: SeaGlassScrollPaneUI.java 1595 2011-08-09 20:33:48Z rosstauscher@gmx.de $</em>
<a class="jxr_linenumber" name="19" href="#19">19</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">package</strong> com.seaglasslookandfeel.ui;
<a class="jxr_linenumber" name="21" href="#21">21</a>  
<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> java.awt.Component;
<a class="jxr_linenumber" name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> java.awt.Dimension;
<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> java.awt.Graphics;
<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> java.awt.Graphics2D;
<a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> java.awt.Insets;
<a class="jxr_linenumber" name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> java.awt.Point;
<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> java.awt.Rectangle;
<a class="jxr_linenumber" name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> java.awt.event.ContainerEvent;
<a class="jxr_linenumber" name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> java.awt.event.ContainerListener;
<a class="jxr_linenumber" name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> java.awt.event.FocusEvent;
<a class="jxr_linenumber" name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> java.awt.event.FocusListener;
<a class="jxr_linenumber" name="33" href="#33">33</a>  <strong class="jxr_keyword">import</strong> java.awt.event.MouseWheelEvent;
<a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> java.awt.event.MouseWheelListener;
<a class="jxr_linenumber" name="35" href="#35">35</a>  <strong class="jxr_keyword">import</strong> java.beans.PropertyChangeEvent;
<a class="jxr_linenumber" name="36" href="#36">36</a>  <strong class="jxr_keyword">import</strong> java.beans.PropertyChangeListener;
<a class="jxr_linenumber" name="37" href="#37">37</a>  
<a class="jxr_linenumber" name="38" href="#38">38</a>  <strong class="jxr_keyword">import</strong> javax.swing.BoundedRangeModel;
<a class="jxr_linenumber" name="39" href="#39">39</a>  <strong class="jxr_keyword">import</strong> javax.swing.JComponent;
<a class="jxr_linenumber" name="40" href="#40">40</a>  <strong class="jxr_keyword">import</strong> javax.swing.JScrollBar;
<a class="jxr_linenumber" name="41" href="#41">41</a>  <strong class="jxr_keyword">import</strong> javax.swing.JScrollPane;
<a class="jxr_linenumber" name="42" href="#42">42</a>  <strong class="jxr_keyword">import</strong> javax.swing.JViewport;
<a class="jxr_linenumber" name="43" href="#43">43</a>  <strong class="jxr_keyword">import</strong> javax.swing.LookAndFeel;
<a class="jxr_linenumber" name="44" href="#44">44</a>  <strong class="jxr_keyword">import</strong> javax.swing.ScrollPaneConstants;
<a class="jxr_linenumber" name="45" href="#45">45</a>  <strong class="jxr_keyword">import</strong> javax.swing.Scrollable;
<a class="jxr_linenumber" name="46" href="#46">46</a>  <strong class="jxr_keyword">import</strong> javax.swing.SwingConstants;
<a class="jxr_linenumber" name="47" href="#47">47</a>  <strong class="jxr_keyword">import</strong> javax.swing.UIManager;
<a class="jxr_linenumber" name="48" href="#48">48</a>  <strong class="jxr_keyword">import</strong> javax.swing.border.AbstractBorder;
<a class="jxr_linenumber" name="49" href="#49">49</a>  <strong class="jxr_keyword">import</strong> javax.swing.border.Border;
<a class="jxr_linenumber" name="50" href="#50">50</a>  <strong class="jxr_keyword">import</strong> javax.swing.event.ChangeEvent;
<a class="jxr_linenumber" name="51" href="#51">51</a>  <strong class="jxr_keyword">import</strong> javax.swing.event.ChangeListener;
<a class="jxr_linenumber" name="52" href="#52">52</a>  <strong class="jxr_keyword">import</strong> javax.swing.plaf.ComponentUI;
<a class="jxr_linenumber" name="53" href="#53">53</a>  <strong class="jxr_keyword">import</strong> javax.swing.plaf.UIResource;
<a class="jxr_linenumber" name="54" href="#54">54</a>  <strong class="jxr_keyword">import</strong> javax.swing.plaf.basic.BasicScrollPaneUI;
<a class="jxr_linenumber" name="55" href="#55">55</a>  <strong class="jxr_keyword">import</strong> javax.swing.plaf.synth.SynthContext;
<a class="jxr_linenumber" name="56" href="#56">56</a>  <strong class="jxr_keyword">import</strong> javax.swing.plaf.synth.SynthLookAndFeel;
<a class="jxr_linenumber" name="57" href="#57">57</a>  <strong class="jxr_keyword">import</strong> javax.swing.plaf.synth.SynthStyle;
<a class="jxr_linenumber" name="58" href="#58">58</a>  <strong class="jxr_keyword">import</strong> javax.swing.text.JTextComponent;
<a class="jxr_linenumber" name="59" href="#59">59</a>  
<a class="jxr_linenumber" name="60" href="#60">60</a>  <strong class="jxr_keyword">import</strong> com.seaglasslookandfeel.SeaGlassContext;
<a class="jxr_linenumber" name="61" href="#61">61</a>  <strong class="jxr_keyword">import</strong> com.seaglasslookandfeel.SeaGlassLookAndFeel;
<a class="jxr_linenumber" name="62" href="#62">62</a>  <strong class="jxr_keyword">import</strong> com.seaglasslookandfeel.painter.SeaGlassPainter;
<a class="jxr_linenumber" name="63" href="#63">63</a>  
<a class="jxr_linenumber" name="64" href="#64">64</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="65" href="#65">65</a>  <em class="jxr_javadoccomment"> * SeaGlassScrollPaneUI implementation.</em>
<a class="jxr_linenumber" name="66" href="#66">66</a>  <em class="jxr_javadoccomment"> *&lt;p&gt;</em>
<a class="jxr_linenumber" name="67" href="#67">67</a>  <em class="jxr_javadoccomment"> * Minimum necessary copied from BasicScrollPaneUI with appropriate change to</em>
<a class="jxr_linenumber" name="68" href="#68">68</a>  <em class="jxr_javadoccomment"> * support Apple-style horizontal wheel scrolling.</em>
<a class="jxr_linenumber" name="69" href="#69">69</a>  <em class="jxr_javadoccomment"> * </em>
<a class="jxr_linenumber" name="70" href="#70">70</a>  <em class="jxr_javadoccomment"> * @see javax.swing.plaf.basic.BasicScrollPaneUI</em>
<a class="jxr_linenumber" name="71" href="#71">71</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="72" href="#72">72</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">SeaGlassScrollPaneUI</a> <strong class="jxr_keyword">extends</strong> BasicScrollPaneUI <strong class="jxr_keyword">implements</strong> PropertyChangeListener, ScrollPaneConstants, <a href="../../../com/seaglasslookandfeel/ui/SeaglassUI.html">SeaglassUI</a> {
<a class="jxr_linenumber" name="73" href="#73">73</a>      <strong class="jxr_keyword">private</strong> MouseWheelListener       mouseScrollListener;
<a class="jxr_linenumber" name="74" href="#74">74</a>      <strong class="jxr_keyword">private</strong> SynthStyle               style;
<a class="jxr_linenumber" name="75" href="#75">75</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong>                  viewportViewHasFocus = false;
<a class="jxr_linenumber" name="76" href="#76">76</a>      <strong class="jxr_keyword">private</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">ViewportViewFocusHandler</a> viewportViewFocusHandler;
<a class="jxr_linenumber" name="77" href="#77">77</a>  
<a class="jxr_linenumber" name="78" href="#78">78</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="79" href="#79">79</a>  <em class="jxr_javadoccomment">     * PropertyChangeListener installed on the vertical scrollbar.</em>
<a class="jxr_linenumber" name="80" href="#80">80</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="81" href="#81">81</a>      <strong class="jxr_keyword">private</strong> PropertyChangeListener   vsbPropertyChangeListener;
<a class="jxr_linenumber" name="82" href="#82">82</a>  
<a class="jxr_linenumber" name="83" href="#83">83</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="84" href="#84">84</a>  <em class="jxr_javadoccomment">     * PropertyChangeListener installed on the horizontal scrollbar.</em>
<a class="jxr_linenumber" name="85" href="#85">85</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="86" href="#86">86</a>      <strong class="jxr_keyword">private</strong> PropertyChangeListener   hsbPropertyChangeListener;
<a class="jxr_linenumber" name="87" href="#87">87</a>  
<a class="jxr_linenumber" name="88" href="#88">88</a>      <strong class="jxr_keyword">private</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">Handler</a>                  handler;
<a class="jxr_linenumber" name="89" href="#89">89</a>  
<a class="jxr_linenumber" name="90" href="#90">90</a>      <strong class="jxr_keyword">private</strong> <a href="../../../com/seaglasslookandfeel/painter/SeaGlassPainter.html">SeaGlassPainter</a>                  cornerPainter;
<a class="jxr_linenumber" name="91" href="#91">91</a>  
<a class="jxr_linenumber" name="92" href="#92">92</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="93" href="#93">93</a>  <em class="jxr_javadoccomment">     * State flag that shows whether setValue() was called from a user program</em>
<a class="jxr_linenumber" name="94" href="#94">94</a>  <em class="jxr_javadoccomment">     * before the value of "extent" was set in right-to-left component</em>
<a class="jxr_linenumber" name="95" href="#95">95</a>  <em class="jxr_javadoccomment">     * orientation.</em>
<a class="jxr_linenumber" name="96" href="#96">96</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="97" href="#97">97</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong>                  setValueCalled       = false;
<a class="jxr_linenumber" name="98" href="#98">98</a>  
<a class="jxr_linenumber" name="99" href="#99">99</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> ComponentUI createUI(JComponent x) {
<a class="jxr_linenumber" name="100" href="#100">100</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">SeaGlassScrollPaneUI</a>();
<a class="jxr_linenumber" name="101" href="#101">101</a>     }
<a class="jxr_linenumber" name="102" href="#102">102</a> 
<a class="jxr_linenumber" name="103" href="#103">103</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> installDefaults(JScrollPane scrollpane) {
<a class="jxr_linenumber" name="104" href="#104">104</a>         LookAndFeel.installBorder(scrollpane, <span class="jxr_string">"ScrollPane.border"</span>);
<a class="jxr_linenumber" name="105" href="#105">105</a>         LookAndFeel.installColorsAndFont(scrollpane, <span class="jxr_string">"ScrollPane.background"</span>, <span class="jxr_string">"ScrollPane.foreground"</span>, <span class="jxr_string">"ScrollPane.font"</span>);
<a class="jxr_linenumber" name="106" href="#106">106</a> 
<a class="jxr_linenumber" name="107" href="#107">107</a>         Border vpBorder = scrollpane.getViewportBorder();
<a class="jxr_linenumber" name="108" href="#108">108</a>         <strong class="jxr_keyword">if</strong> ((vpBorder == <strong class="jxr_keyword">null</strong>) || (vpBorder instanceof UIResource)) {
<a class="jxr_linenumber" name="109" href="#109">109</a>             vpBorder = UIManager.getBorder(<span class="jxr_string">"ScrollPane.viewportBorder"</span>);
<a class="jxr_linenumber" name="110" href="#110">110</a>             scrollpane.setViewportBorder(vpBorder);
<a class="jxr_linenumber" name="111" href="#111">111</a>         }
<a class="jxr_linenumber" name="112" href="#112">112</a> 
<a class="jxr_linenumber" name="113" href="#113">113</a>         Object obj = UIManager.get(<span class="jxr_string">"ScrollPane.cornerPainter"</span>);
<a class="jxr_linenumber" name="114" href="#114">114</a>         <strong class="jxr_keyword">if</strong> (obj != <strong class="jxr_keyword">null</strong> &amp;&amp; obj instanceof SeaGlassPainter) {
<a class="jxr_linenumber" name="115" href="#115">115</a>             cornerPainter = (SeaGlassPainter) obj;
<a class="jxr_linenumber" name="116" href="#116">116</a>         }
<a class="jxr_linenumber" name="117" href="#117">117</a> 
<a class="jxr_linenumber" name="118" href="#118">118</a>         LookAndFeel.installProperty(scrollpane, <span class="jxr_string">"opaque"</span>, Boolean.TRUE);
<a class="jxr_linenumber" name="119" href="#119">119</a>         updateStyle(scrollpane);
<a class="jxr_linenumber" name="120" href="#120">120</a>     }
<a class="jxr_linenumber" name="121" href="#121">121</a> 
<a class="jxr_linenumber" name="122" href="#122">122</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> uninstallDefaults(JScrollPane c) {
<a class="jxr_linenumber" name="123" href="#123">123</a>         <a href="../../../com/seaglasslookandfeel/SeaGlassContext.html">SeaGlassContext</a> context = getContext(c, ENABLED);
<a class="jxr_linenumber" name="124" href="#124">124</a> 
<a class="jxr_linenumber" name="125" href="#125">125</a>         style.uninstallDefaults(context);
<a class="jxr_linenumber" name="126" href="#126">126</a>         context.dispose();
<a class="jxr_linenumber" name="127" href="#127">127</a> 
<a class="jxr_linenumber" name="128" href="#128">128</a>         <strong class="jxr_keyword">if</strong> (scrollpane.getViewportBorder() instanceof UIResource) {
<a class="jxr_linenumber" name="129" href="#129">129</a>             scrollpane.setViewportBorder(<strong class="jxr_keyword">null</strong>);
<a class="jxr_linenumber" name="130" href="#130">130</a>         }
<a class="jxr_linenumber" name="131" href="#131">131</a>     }
<a class="jxr_linenumber" name="132" href="#132">132</a> 
<a class="jxr_linenumber" name="133" href="#133">133</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> updateStyle(JScrollPane c) {
<a class="jxr_linenumber" name="134" href="#134">134</a>         <a href="../../../com/seaglasslookandfeel/SeaGlassContext.html">SeaGlassContext</a> context = getContext(c, ENABLED);
<a class="jxr_linenumber" name="135" href="#135">135</a>         SynthStyle oldStyle = style;
<a class="jxr_linenumber" name="136" href="#136">136</a> 
<a class="jxr_linenumber" name="137" href="#137">137</a>         style = SeaGlassLookAndFeel.updateStyle(context, <strong class="jxr_keyword">this</strong>);
<a class="jxr_linenumber" name="138" href="#138">138</a>         <strong class="jxr_keyword">if</strong> (style != oldStyle) {
<a class="jxr_linenumber" name="139" href="#139">139</a>             Border vpBorder = scrollpane.getViewportBorder();
<a class="jxr_linenumber" name="140" href="#140">140</a>             <strong class="jxr_keyword">if</strong> ((vpBorder == <strong class="jxr_keyword">null</strong>) || (vpBorder instanceof UIResource)) {
<a class="jxr_linenumber" name="141" href="#141">141</a>                 scrollpane.setViewportBorder(<strong class="jxr_keyword">new</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">ViewportBorder</a>(context));
<a class="jxr_linenumber" name="142" href="#142">142</a>             }
<a class="jxr_linenumber" name="143" href="#143">143</a>             <strong class="jxr_keyword">if</strong> (oldStyle != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="144" href="#144">144</a>                 uninstallKeyboardActions(c);
<a class="jxr_linenumber" name="145" href="#145">145</a>                 installKeyboardActions(c);
<a class="jxr_linenumber" name="146" href="#146">146</a>             }
<a class="jxr_linenumber" name="147" href="#147">147</a>         }
<a class="jxr_linenumber" name="148" href="#148">148</a>         context.dispose();
<a class="jxr_linenumber" name="149" href="#149">149</a>     }
<a class="jxr_linenumber" name="150" href="#150">150</a> 
<a class="jxr_linenumber" name="151" href="#151">151</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> installListeners(JScrollPane c) {
<a class="jxr_linenumber" name="152" href="#152">152</a>         vsbChangeListener = createVSBChangeListener();
<a class="jxr_linenumber" name="153" href="#153">153</a>         vsbPropertyChangeListener = createVSBPropertyChangeListener();
<a class="jxr_linenumber" name="154" href="#154">154</a>         hsbChangeListener = createHSBChangeListener();
<a class="jxr_linenumber" name="155" href="#155">155</a>         hsbPropertyChangeListener = createHSBPropertyChangeListener();
<a class="jxr_linenumber" name="156" href="#156">156</a>         viewportChangeListener = createViewportChangeListener();
<a class="jxr_linenumber" name="157" href="#157">157</a>         spPropertyChangeListener = createPropertyChangeListener();
<a class="jxr_linenumber" name="158" href="#158">158</a> 
<a class="jxr_linenumber" name="159" href="#159">159</a>         JViewport viewport = scrollpane.getViewport();
<a class="jxr_linenumber" name="160" href="#160">160</a>         JScrollBar vsb = scrollpane.getVerticalScrollBar();
<a class="jxr_linenumber" name="161" href="#161">161</a>         JScrollBar hsb = scrollpane.getHorizontalScrollBar();
<a class="jxr_linenumber" name="162" href="#162">162</a> 
<a class="jxr_linenumber" name="163" href="#163">163</a>         <strong class="jxr_keyword">if</strong> (viewport != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="164" href="#164">164</a>             viewport.addChangeListener(viewportChangeListener);
<a class="jxr_linenumber" name="165" href="#165">165</a>         }
<a class="jxr_linenumber" name="166" href="#166">166</a>         <strong class="jxr_keyword">if</strong> (vsb != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="167" href="#167">167</a>             vsb.getModel().addChangeListener(vsbChangeListener);
<a class="jxr_linenumber" name="168" href="#168">168</a>             vsb.addPropertyChangeListener(vsbPropertyChangeListener);
<a class="jxr_linenumber" name="169" href="#169">169</a>         }
<a class="jxr_linenumber" name="170" href="#170">170</a>         <strong class="jxr_keyword">if</strong> (hsb != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="171" href="#171">171</a>             hsb.getModel().addChangeListener(hsbChangeListener);
<a class="jxr_linenumber" name="172" href="#172">172</a>             hsb.addPropertyChangeListener(hsbPropertyChangeListener);
<a class="jxr_linenumber" name="173" href="#173">173</a>         }
<a class="jxr_linenumber" name="174" href="#174">174</a> 
<a class="jxr_linenumber" name="175" href="#175">175</a>         scrollpane.addPropertyChangeListener(spPropertyChangeListener);
<a class="jxr_linenumber" name="176" href="#176">176</a> 
<a class="jxr_linenumber" name="177" href="#177">177</a>         mouseScrollListener = createMouseWheelListener();
<a class="jxr_linenumber" name="178" href="#178">178</a>         scrollpane.addMouseWheelListener(mouseScrollListener);
<a class="jxr_linenumber" name="179" href="#179">179</a> 
<a class="jxr_linenumber" name="180" href="#180">180</a>         <em class="jxr_comment">// From SynthScrollPaneUI.</em>
<a class="jxr_linenumber" name="181" href="#181">181</a>         c.addPropertyChangeListener(<strong class="jxr_keyword">this</strong>);
<a class="jxr_linenumber" name="182" href="#182">182</a>         <strong class="jxr_keyword">if</strong> (UIManager.getBoolean(<span class="jxr_string">"ScrollPane.useChildTextComponentFocus"</span>)) {
<a class="jxr_linenumber" name="183" href="#183">183</a>             viewportViewFocusHandler = <strong class="jxr_keyword">new</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">ViewportViewFocusHandler</a>();
<a class="jxr_linenumber" name="184" href="#184">184</a>             c.getViewport().addContainerListener(viewportViewFocusHandler);
<a class="jxr_linenumber" name="185" href="#185">185</a>             Component view = c.getViewport().getView();
<a class="jxr_linenumber" name="186" href="#186">186</a>             <strong class="jxr_keyword">if</strong> (view instanceof JTextComponent) {
<a class="jxr_linenumber" name="187" href="#187">187</a>                 view.addFocusListener(viewportViewFocusHandler);
<a class="jxr_linenumber" name="188" href="#188">188</a>             }
<a class="jxr_linenumber" name="189" href="#189">189</a>         }
<a class="jxr_linenumber" name="190" href="#190">190</a>     }
<a class="jxr_linenumber" name="191" href="#191">191</a> 
<a class="jxr_linenumber" name="192" href="#192">192</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> uninstallListeners(JComponent c) {
<a class="jxr_linenumber" name="193" href="#193">193</a>         JViewport viewport = scrollpane.getViewport();
<a class="jxr_linenumber" name="194" href="#194">194</a>         JScrollBar vsb = scrollpane.getVerticalScrollBar();
<a class="jxr_linenumber" name="195" href="#195">195</a>         JScrollBar hsb = scrollpane.getHorizontalScrollBar();
<a class="jxr_linenumber" name="196" href="#196">196</a> 
<a class="jxr_linenumber" name="197" href="#197">197</a>         <strong class="jxr_keyword">if</strong> (viewport != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="198" href="#198">198</a>             viewport.removeChangeListener(viewportChangeListener);
<a class="jxr_linenumber" name="199" href="#199">199</a>         }
<a class="jxr_linenumber" name="200" href="#200">200</a>         <strong class="jxr_keyword">if</strong> (vsb != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="201" href="#201">201</a>             vsb.getModel().removeChangeListener(vsbChangeListener);
<a class="jxr_linenumber" name="202" href="#202">202</a>             vsb.removePropertyChangeListener(vsbPropertyChangeListener);
<a class="jxr_linenumber" name="203" href="#203">203</a>         }
<a class="jxr_linenumber" name="204" href="#204">204</a>         <strong class="jxr_keyword">if</strong> (hsb != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="205" href="#205">205</a>             hsb.getModel().removeChangeListener(hsbChangeListener);
<a class="jxr_linenumber" name="206" href="#206">206</a>             hsb.removePropertyChangeListener(hsbPropertyChangeListener);
<a class="jxr_linenumber" name="207" href="#207">207</a>         }
<a class="jxr_linenumber" name="208" href="#208">208</a> 
<a class="jxr_linenumber" name="209" href="#209">209</a>         scrollpane.removePropertyChangeListener(spPropertyChangeListener);
<a class="jxr_linenumber" name="210" href="#210">210</a> 
<a class="jxr_linenumber" name="211" href="#211">211</a>         <strong class="jxr_keyword">if</strong> (mouseScrollListener != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="212" href="#212">212</a>             scrollpane.removeMouseWheelListener(mouseScrollListener);
<a class="jxr_linenumber" name="213" href="#213">213</a>         }
<a class="jxr_linenumber" name="214" href="#214">214</a> 
<a class="jxr_linenumber" name="215" href="#215">215</a>         vsbChangeListener = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="216" href="#216">216</a>         hsbChangeListener = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="217" href="#217">217</a>         viewportChangeListener = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="218" href="#218">218</a>         spPropertyChangeListener = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="219" href="#219">219</a>         mouseScrollListener = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="220" href="#220">220</a>         handler = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="221" href="#221">221</a> 
<a class="jxr_linenumber" name="222" href="#222">222</a>         <em class="jxr_comment">// From SynthScrollPaneUI.</em>
<a class="jxr_linenumber" name="223" href="#223">223</a>         c.removePropertyChangeListener(<strong class="jxr_keyword">this</strong>);
<a class="jxr_linenumber" name="224" href="#224">224</a>         <strong class="jxr_keyword">if</strong> (viewportViewFocusHandler != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="225" href="#225">225</a>             viewport.removeContainerListener(viewportViewFocusHandler);
<a class="jxr_linenumber" name="226" href="#226">226</a>             <strong class="jxr_keyword">if</strong> (viewport.getView() != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="227" href="#227">227</a>                 viewport.getView().removeFocusListener(viewportViewFocusHandler);
<a class="jxr_linenumber" name="228" href="#228">228</a>             }
<a class="jxr_linenumber" name="229" href="#229">229</a>             viewportViewFocusHandler = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="230" href="#230">230</a>         }
<a class="jxr_linenumber" name="231" href="#231">231</a>     }
<a class="jxr_linenumber" name="232" href="#232">232</a> 
<a class="jxr_linenumber" name="233" href="#233">233</a>     <strong class="jxr_keyword">public</strong> <a href="../../../com/seaglasslookandfeel/SeaGlassContext.html">SeaGlassContext</a> getContext(JComponent c) {
<a class="jxr_linenumber" name="234" href="#234">234</a>         <strong class="jxr_keyword">return</strong> getContext(c, getComponentState(c));
<a class="jxr_linenumber" name="235" href="#235">235</a>     }
<a class="jxr_linenumber" name="236" href="#236">236</a> 
<a class="jxr_linenumber" name="237" href="#237">237</a>     <strong class="jxr_keyword">private</strong> <a href="../../../com/seaglasslookandfeel/SeaGlassContext.html">SeaGlassContext</a> getContext(JComponent c, <strong class="jxr_keyword">int</strong> state) {
<a class="jxr_linenumber" name="238" href="#238">238</a>         <strong class="jxr_keyword">return</strong> SeaGlassContext.getContext(SeaGlassContext.<strong class="jxr_keyword">class</strong>, c, SynthLookAndFeel.getRegion(c), style, state);
<a class="jxr_linenumber" name="239" href="#239">239</a>     }
<a class="jxr_linenumber" name="240" href="#240">240</a> 
<a class="jxr_linenumber" name="241" href="#241">241</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> getComponentState(JComponent c) {
<a class="jxr_linenumber" name="242" href="#242">242</a>         <strong class="jxr_keyword">int</strong> baseState = SeaGlassLookAndFeel.getComponentState(c);
<a class="jxr_linenumber" name="243" href="#243">243</a>         <strong class="jxr_keyword">if</strong> (viewportViewFocusHandler != <strong class="jxr_keyword">null</strong> &amp;&amp; viewportViewHasFocus) {
<a class="jxr_linenumber" name="244" href="#244">244</a>             baseState = baseState | FOCUSED;
<a class="jxr_linenumber" name="245" href="#245">245</a>         }
<a class="jxr_linenumber" name="246" href="#246">246</a>         <strong class="jxr_keyword">return</strong> baseState;
<a class="jxr_linenumber" name="247" href="#247">247</a>     }
<a class="jxr_linenumber" name="248" href="#248">248</a> 
<a class="jxr_linenumber" name="249" href="#249">249</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> propertyChange(PropertyChangeEvent e) {
<a class="jxr_linenumber" name="250" href="#250">250</a>         <strong class="jxr_keyword">if</strong> (SeaGlassLookAndFeel.shouldUpdateStyle(e)) {
<a class="jxr_linenumber" name="251" href="#251">251</a>             updateStyle(scrollpane);
<a class="jxr_linenumber" name="252" href="#252">252</a>         }
<a class="jxr_linenumber" name="253" href="#253">253</a>     }
<a class="jxr_linenumber" name="254" href="#254">254</a> 
<a class="jxr_linenumber" name="255" href="#255">255</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> update(Graphics g, JComponent c) {
<a class="jxr_linenumber" name="256" href="#256">256</a>         <a href="../../../com/seaglasslookandfeel/SeaGlassContext.html">SeaGlassContext</a> context = getContext(c);
<a class="jxr_linenumber" name="257" href="#257">257</a> 
<a class="jxr_linenumber" name="258" href="#258">258</a>         SeaGlassLookAndFeel.update(context, g);
<a class="jxr_linenumber" name="259" href="#259">259</a>         context.getPainter().paintScrollPaneBackground(context, g, 0, 0, c.getWidth(), c.getHeight());
<a class="jxr_linenumber" name="260" href="#260">260</a>         paintScrollPaneCorner(g, c);
<a class="jxr_linenumber" name="261" href="#261">261</a>         paint(context, g);
<a class="jxr_linenumber" name="262" href="#262">262</a>         context.dispose();
<a class="jxr_linenumber" name="263" href="#263">263</a>     }
<a class="jxr_linenumber" name="264" href="#264">264</a> 
<a class="jxr_linenumber" name="265" href="#265">265</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="266" href="#266">266</a> <em class="jxr_javadoccomment">     * @param g</em>
<a class="jxr_linenumber" name="267" href="#267">267</a> <em class="jxr_javadoccomment">     * @param c</em>
<a class="jxr_linenumber" name="268" href="#268">268</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="269" href="#269">269</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> paintScrollPaneCorner(Graphics g, JComponent c) {
<a class="jxr_linenumber" name="270" href="#270">270</a>         <strong class="jxr_keyword">if</strong> (scrollpane == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="271" href="#271">271</a>             <strong class="jxr_keyword">return</strong>;
<a class="jxr_linenumber" name="272" href="#272">272</a>         }
<a class="jxr_linenumber" name="273" href="#273">273</a>         <strong class="jxr_keyword">if</strong> (scrollpane.getHorizontalScrollBar() == <strong class="jxr_keyword">null</strong> || !scrollpane.getHorizontalScrollBar().isVisible()) {
<a class="jxr_linenumber" name="274" href="#274">274</a>             <strong class="jxr_keyword">return</strong>;
<a class="jxr_linenumber" name="275" href="#275">275</a>         }
<a class="jxr_linenumber" name="276" href="#276">276</a>         <strong class="jxr_keyword">if</strong> (scrollpane.getVerticalScrollBar() == <strong class="jxr_keyword">null</strong> || !scrollpane.getVerticalScrollBar().isVisible()) {
<a class="jxr_linenumber" name="277" href="#277">277</a>             <strong class="jxr_keyword">return</strong>;
<a class="jxr_linenumber" name="278" href="#278">278</a>         }
<a class="jxr_linenumber" name="279" href="#279">279</a> 
<a class="jxr_linenumber" name="280" href="#280">280</a>         <strong class="jxr_keyword">int</strong> vBarWidth = scrollpane.getVerticalScrollBar().getWidth();
<a class="jxr_linenumber" name="281" href="#281">281</a>         <strong class="jxr_keyword">int</strong> hBarHeight = scrollpane.getHorizontalScrollBar().getHeight();
<a class="jxr_linenumber" name="282" href="#282">282</a> 
<a class="jxr_linenumber" name="283" href="#283">283</a>         Insets insets = c.getInsets();
<a class="jxr_linenumber" name="284" href="#284">284</a> 
<a class="jxr_linenumber" name="285" href="#285">285</a>         Graphics2D g2 = (Graphics2D) g.create();
<a class="jxr_linenumber" name="286" href="#286">286</a>         <strong class="jxr_keyword">if</strong> (scrollpane.getComponentOrientation().isLeftToRight()) {
<a class="jxr_linenumber" name="287" href="#287">287</a>             g2.translate(c.getWidth() - insets.right - vBarWidth, c.getHeight() - insets.bottom - hBarHeight);
<a class="jxr_linenumber" name="288" href="#288">288</a>             g2.setClip(0, 0, vBarWidth, hBarHeight);
<a class="jxr_linenumber" name="289" href="#289">289</a>         } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="290" href="#290">290</a>             g2.translate(15 + insets.right, c.getHeight() - insets.bottom - hBarHeight);
<a class="jxr_linenumber" name="291" href="#291">291</a>             g2.scale(-1, 1);
<a class="jxr_linenumber" name="292" href="#292">292</a>             g2.setClip(0, 0, vBarWidth, hBarHeight);
<a class="jxr_linenumber" name="293" href="#293">293</a>         }
<a class="jxr_linenumber" name="294" href="#294">294</a>         cornerPainter.paint(g2, c, 15, 15);
<a class="jxr_linenumber" name="295" href="#295">295</a>     }
<a class="jxr_linenumber" name="296" href="#296">296</a> 
<a class="jxr_linenumber" name="297" href="#297">297</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> paint(Graphics g, JComponent c) {
<a class="jxr_linenumber" name="298" href="#298">298</a>         <a href="../../../com/seaglasslookandfeel/SeaGlassContext.html">SeaGlassContext</a> context = getContext(c);
<a class="jxr_linenumber" name="299" href="#299">299</a> 
<a class="jxr_linenumber" name="300" href="#300">300</a>         paint(context, g);
<a class="jxr_linenumber" name="301" href="#301">301</a>         context.dispose();
<a class="jxr_linenumber" name="302" href="#302">302</a>     }
<a class="jxr_linenumber" name="303" href="#303">303</a> 
<a class="jxr_linenumber" name="304" href="#304">304</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> paint(SynthContext context, Graphics g) {
<a class="jxr_linenumber" name="305" href="#305">305</a>         Border vpBorder = scrollpane.getViewportBorder();
<a class="jxr_linenumber" name="306" href="#306">306</a>         <strong class="jxr_keyword">if</strong> (vpBorder != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="307" href="#307">307</a>             Rectangle r = scrollpane.getViewportBorderBounds();
<a class="jxr_linenumber" name="308" href="#308">308</a>             vpBorder.paintBorder(scrollpane, g, r.x, r.y, r.width, r.height);
<a class="jxr_linenumber" name="309" href="#309">309</a>         }
<a class="jxr_linenumber" name="310" href="#310">310</a>     }
<a class="jxr_linenumber" name="311" href="#311">311</a> 
<a class="jxr_linenumber" name="312" href="#312">312</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> paintBorder(SynthContext context, Graphics g, <strong class="jxr_keyword">int</strong> x, <strong class="jxr_keyword">int</strong> y, <strong class="jxr_keyword">int</strong> w, <strong class="jxr_keyword">int</strong> h) {
<a class="jxr_linenumber" name="313" href="#313">313</a>         ((<a href="../../../com/seaglasslookandfeel/SeaGlassContext.html">SeaGlassContext</a>) context).getPainter().paintScrollPaneBorder(context, g, x, y, w, h);
<a class="jxr_linenumber" name="314" href="#314">314</a>     }
<a class="jxr_linenumber" name="315" href="#315">315</a> 
<a class="jxr_linenumber" name="316" href="#316">316</a>     <strong class="jxr_keyword">private</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">Handler</a> getHandler() {
<a class="jxr_linenumber" name="317" href="#317">317</a>         <strong class="jxr_keyword">if</strong> (handler == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="318" href="#318">318</a>             handler = <strong class="jxr_keyword">new</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">Handler</a>();
<a class="jxr_linenumber" name="319" href="#319">319</a>         }
<a class="jxr_linenumber" name="320" href="#320">320</a>         <strong class="jxr_keyword">return</strong> handler;
<a class="jxr_linenumber" name="321" href="#321">321</a>     }
<a class="jxr_linenumber" name="322" href="#322">322</a> 
<a class="jxr_linenumber" name="323" href="#323">323</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> syncScrollPaneWithViewport() {
<a class="jxr_linenumber" name="324" href="#324">324</a>         JViewport viewport = scrollpane.getViewport();
<a class="jxr_linenumber" name="325" href="#325">325</a>         JScrollBar vsb = scrollpane.getVerticalScrollBar();
<a class="jxr_linenumber" name="326" href="#326">326</a>         JScrollBar hsb = scrollpane.getHorizontalScrollBar();
<a class="jxr_linenumber" name="327" href="#327">327</a>         JViewport rowHead = scrollpane.getRowHeader();
<a class="jxr_linenumber" name="328" href="#328">328</a>         JViewport colHead = scrollpane.getColumnHeader();
<a class="jxr_linenumber" name="329" href="#329">329</a>         <strong class="jxr_keyword">boolean</strong> ltr = scrollpane.getComponentOrientation().isLeftToRight();
<a class="jxr_linenumber" name="330" href="#330">330</a> 
<a class="jxr_linenumber" name="331" href="#331">331</a>         <strong class="jxr_keyword">if</strong> (viewport != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="332" href="#332">332</a>             Dimension extentSize = viewport.getExtentSize();
<a class="jxr_linenumber" name="333" href="#333">333</a>             Dimension viewSize = viewport.getViewSize();
<a class="jxr_linenumber" name="334" href="#334">334</a>             Point viewPosition = viewport.getViewPosition();
<a class="jxr_linenumber" name="335" href="#335">335</a> 
<a class="jxr_linenumber" name="336" href="#336">336</a>             <strong class="jxr_keyword">if</strong> (vsb != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="337" href="#337">337</a>                 <strong class="jxr_keyword">int</strong> extent = extentSize.height;
<a class="jxr_linenumber" name="338" href="#338">338</a>                 <strong class="jxr_keyword">int</strong> max = viewSize.height;
<a class="jxr_linenumber" name="339" href="#339">339</a>                 <strong class="jxr_keyword">int</strong> value = Math.max(0, Math.min(viewPosition.y, max - extent));
<a class="jxr_linenumber" name="340" href="#340">340</a>                 vsb.setValues(value, extent, 0, max);
<a class="jxr_linenumber" name="341" href="#341">341</a>             }
<a class="jxr_linenumber" name="342" href="#342">342</a> 
<a class="jxr_linenumber" name="343" href="#343">343</a>             <strong class="jxr_keyword">if</strong> (hsb != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="344" href="#344">344</a>                 <strong class="jxr_keyword">int</strong> extent = extentSize.width;
<a class="jxr_linenumber" name="345" href="#345">345</a>                 <strong class="jxr_keyword">int</strong> max = viewSize.width;
<a class="jxr_linenumber" name="346" href="#346">346</a>                 <strong class="jxr_keyword">int</strong> value;
<a class="jxr_linenumber" name="347" href="#347">347</a> 
<a class="jxr_linenumber" name="348" href="#348">348</a>                 <strong class="jxr_keyword">if</strong> (ltr) {
<a class="jxr_linenumber" name="349" href="#349">349</a>                     value = Math.max(0, Math.min(viewPosition.x, max - extent));
<a class="jxr_linenumber" name="350" href="#350">350</a>                 } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="351" href="#351">351</a>                     <strong class="jxr_keyword">int</strong> currentValue = hsb.getValue();
<a class="jxr_linenumber" name="352" href="#352">352</a> 
<a class="jxr_linenumber" name="353" href="#353">353</a>                     <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="354" href="#354">354</a> <em class="jxr_comment">                     * Use a particular formula to calculate "value" until</em>
<a class="jxr_linenumber" name="355" href="#355">355</a> <em class="jxr_comment">                     * effective x coordinate is calculated.</em>
<a class="jxr_linenumber" name="356" href="#356">356</a> <em class="jxr_comment">                     */</em>
<a class="jxr_linenumber" name="357" href="#357">357</a>                     <strong class="jxr_keyword">if</strong> (setValueCalled &amp;&amp; ((max - currentValue) == viewPosition.x)) {
<a class="jxr_linenumber" name="358" href="#358">358</a>                         value = Math.max(0, Math.min(max - extent, currentValue));
<a class="jxr_linenumber" name="359" href="#359">359</a>                         <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="360" href="#360">360</a> <em class="jxr_comment">                         * After "extent" is set, turn setValueCalled flag off.</em>
<a class="jxr_linenumber" name="361" href="#361">361</a> <em class="jxr_comment">                         */</em>
<a class="jxr_linenumber" name="362" href="#362">362</a>                         <strong class="jxr_keyword">if</strong> (extent != 0) {
<a class="jxr_linenumber" name="363" href="#363">363</a>                             setValueCalled = false;
<a class="jxr_linenumber" name="364" href="#364">364</a>                         }
<a class="jxr_linenumber" name="365" href="#365">365</a>                     } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="366" href="#366">366</a>                         <strong class="jxr_keyword">if</strong> (extent &gt; max) {
<a class="jxr_linenumber" name="367" href="#367">367</a>                             viewPosition.x = max - extent;
<a class="jxr_linenumber" name="368" href="#368">368</a>                             viewport.setViewPosition(viewPosition);
<a class="jxr_linenumber" name="369" href="#369">369</a>                             value = 0;
<a class="jxr_linenumber" name="370" href="#370">370</a>                         } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="371" href="#371">371</a>                             <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="372" href="#372">372</a> <em class="jxr_comment">                             * The following line can't handle a small value of</em>
<a class="jxr_linenumber" name="373" href="#373">373</a> <em class="jxr_comment">                             * viewPosition.x like Integer.MIN_VALUE correctly</em>
<a class="jxr_linenumber" name="374" href="#374">374</a> <em class="jxr_comment">                             * because (max - extent - viewPositoiin.x) causes</em>
<a class="jxr_linenumber" name="375" href="#375">375</a> <em class="jxr_comment">                             * an overflow. As a result, value becomes zero.</em>
<a class="jxr_linenumber" name="376" href="#376">376</a> <em class="jxr_comment">                             * (e.g. setViewPosition(Integer.MAX_VALUE, ...) in</em>
<a class="jxr_linenumber" name="377" href="#377">377</a> <em class="jxr_comment">                             * a user program causes a overflow. Its expected</em>
<a class="jxr_linenumber" name="378" href="#378">378</a> <em class="jxr_comment">                             * value is (max - extent).) However, this seems a</em>
<a class="jxr_linenumber" name="379" href="#379">379</a> <em class="jxr_comment">                             * trivial bug and adding a fix makes this</em>
<a class="jxr_linenumber" name="380" href="#380">380</a> <em class="jxr_comment">                             * often-called method slow, so I'll leave it until</em>
<a class="jxr_linenumber" name="381" href="#381">381</a> <em class="jxr_comment">                             * someone claims.</em>
<a class="jxr_linenumber" name="382" href="#382">382</a> <em class="jxr_comment">                             */</em>
<a class="jxr_linenumber" name="383" href="#383">383</a>                             value = Math.max(0, Math.min(max - extent, max - extent - viewPosition.x));
<a class="jxr_linenumber" name="384" href="#384">384</a>                         }
<a class="jxr_linenumber" name="385" href="#385">385</a>                     }
<a class="jxr_linenumber" name="386" href="#386">386</a>                 }
<a class="jxr_linenumber" name="387" href="#387">387</a>                 hsb.setValues(value, extent, 0, max);
<a class="jxr_linenumber" name="388" href="#388">388</a>             }
<a class="jxr_linenumber" name="389" href="#389">389</a> 
<a class="jxr_linenumber" name="390" href="#390">390</a>             <strong class="jxr_keyword">if</strong> (rowHead != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="391" href="#391">391</a>                 Point p = rowHead.getViewPosition();
<a class="jxr_linenumber" name="392" href="#392">392</a>                 p.y = viewport.getViewPosition().y;
<a class="jxr_linenumber" name="393" href="#393">393</a>                 p.x = 0;
<a class="jxr_linenumber" name="394" href="#394">394</a>                 rowHead.setViewPosition(p);
<a class="jxr_linenumber" name="395" href="#395">395</a>             }
<a class="jxr_linenumber" name="396" href="#396">396</a> 
<a class="jxr_linenumber" name="397" href="#397">397</a>             <strong class="jxr_keyword">if</strong> (colHead != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="398" href="#398">398</a>                 Point p = colHead.getViewPosition();
<a class="jxr_linenumber" name="399" href="#399">399</a>                 <strong class="jxr_keyword">if</strong> (ltr) {
<a class="jxr_linenumber" name="400" href="#400">400</a>                     p.x = viewport.getViewPosition().x;
<a class="jxr_linenumber" name="401" href="#401">401</a>                 } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="402" href="#402">402</a>                     p.x = Math.max(0, viewport.getViewPosition().x);
<a class="jxr_linenumber" name="403" href="#403">403</a>                 }
<a class="jxr_linenumber" name="404" href="#404">404</a>                 p.y = 0;
<a class="jxr_linenumber" name="405" href="#405">405</a>                 colHead.setViewPosition(p);
<a class="jxr_linenumber" name="406" href="#406">406</a>             }
<a class="jxr_linenumber" name="407" href="#407">407</a>         }
<a class="jxr_linenumber" name="408" href="#408">408</a>     }
<a class="jxr_linenumber" name="409" href="#409">409</a> 
<a class="jxr_linenumber" name="410" href="#410">410</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="411" href="#411">411</a> <em class="jxr_javadoccomment">     * Listener for viewport events.</em>
<a class="jxr_linenumber" name="412" href="#412">412</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="413" href="#413">413</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">ViewportChangeHandler</a> <strong class="jxr_keyword">implements</strong> ChangeListener {
<a class="jxr_linenumber" name="414" href="#414">414</a> 
<a class="jxr_linenumber" name="415" href="#415">415</a>         <em class="jxr_comment">// NOTE: This class exists only for backward compatability. All</em>
<a class="jxr_linenumber" name="416" href="#416">416</a>         <em class="jxr_comment">// its functionality has been moved into Handler. If you need to add</em>
<a class="jxr_linenumber" name="417" href="#417">417</a>         <em class="jxr_comment">// new functionality add it to the Handler, but make sure this</em>
<a class="jxr_linenumber" name="418" href="#418">418</a>         <em class="jxr_comment">// class calls into the Handler.</em>
<a class="jxr_linenumber" name="419" href="#419">419</a> 
<a class="jxr_linenumber" name="420" href="#420">420</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> stateChanged(ChangeEvent e) {
<a class="jxr_linenumber" name="421" href="#421">421</a>             getHandler().stateChanged(e);
<a class="jxr_linenumber" name="422" href="#422">422</a>         }
<a class="jxr_linenumber" name="423" href="#423">423</a>     }
<a class="jxr_linenumber" name="424" href="#424">424</a> 
<a class="jxr_linenumber" name="425" href="#425">425</a>     <strong class="jxr_keyword">protected</strong> ChangeListener createViewportChangeListener() {
<a class="jxr_linenumber" name="426" href="#426">426</a>         <strong class="jxr_keyword">return</strong> getHandler();
<a class="jxr_linenumber" name="427" href="#427">427</a>     }
<a class="jxr_linenumber" name="428" href="#428">428</a> 
<a class="jxr_linenumber" name="429" href="#429">429</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="430" href="#430">430</a> <em class="jxr_javadoccomment">     * Horizontal scrollbar listener.</em>
<a class="jxr_linenumber" name="431" href="#431">431</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="432" href="#432">432</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">HSBChangeListener</a> <strong class="jxr_keyword">implements</strong> ChangeListener {
<a class="jxr_linenumber" name="433" href="#433">433</a> 
<a class="jxr_linenumber" name="434" href="#434">434</a>         <em class="jxr_comment">// NOTE: This class exists only for backward compatability. All</em>
<a class="jxr_linenumber" name="435" href="#435">435</a>         <em class="jxr_comment">// its functionality has been moved into Handler. If you need to add</em>
<a class="jxr_linenumber" name="436" href="#436">436</a>         <em class="jxr_comment">// new functionality add it to the Handler, but make sure this</em>
<a class="jxr_linenumber" name="437" href="#437">437</a>         <em class="jxr_comment">// class calls into the Handler.</em>
<a class="jxr_linenumber" name="438" href="#438">438</a> 
<a class="jxr_linenumber" name="439" href="#439">439</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> stateChanged(ChangeEvent e) {
<a class="jxr_linenumber" name="440" href="#440">440</a>             getHandler().stateChanged(e);
<a class="jxr_linenumber" name="441" href="#441">441</a>         }
<a class="jxr_linenumber" name="442" href="#442">442</a>     }
<a class="jxr_linenumber" name="443" href="#443">443</a> 
<a class="jxr_linenumber" name="444" href="#444">444</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="445" href="#445">445</a> <em class="jxr_javadoccomment">     * Returns a &lt;code&gt;PropertyChangeListener&lt;/code&gt; that will be installed on</em>
<a class="jxr_linenumber" name="446" href="#446">446</a> <em class="jxr_javadoccomment">     * the horizontal &lt;code&gt;JScrollBar&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="447" href="#447">447</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="448" href="#448">448</a>     <strong class="jxr_keyword">private</strong> PropertyChangeListener createHSBPropertyChangeListener() {
<a class="jxr_linenumber" name="449" href="#449">449</a>         <strong class="jxr_keyword">return</strong> getHandler();
<a class="jxr_linenumber" name="450" href="#450">450</a>     }
<a class="jxr_linenumber" name="451" href="#451">451</a> 
<a class="jxr_linenumber" name="452" href="#452">452</a>     <strong class="jxr_keyword">protected</strong> ChangeListener createHSBChangeListener() {
<a class="jxr_linenumber" name="453" href="#453">453</a>         <strong class="jxr_keyword">return</strong> getHandler();
<a class="jxr_linenumber" name="454" href="#454">454</a>     }
<a class="jxr_linenumber" name="455" href="#455">455</a> 
<a class="jxr_linenumber" name="456" href="#456">456</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="457" href="#457">457</a> <em class="jxr_javadoccomment">     * Vertical scrollbar listener.</em>
<a class="jxr_linenumber" name="458" href="#458">458</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="459" href="#459">459</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">VSBChangeListener</a> <strong class="jxr_keyword">implements</strong> ChangeListener {
<a class="jxr_linenumber" name="460" href="#460">460</a> 
<a class="jxr_linenumber" name="461" href="#461">461</a>         <em class="jxr_comment">// NOTE: This class exists only for backward compatability. All</em>
<a class="jxr_linenumber" name="462" href="#462">462</a>         <em class="jxr_comment">// its functionality has been moved into Handler. If you need to add</em>
<a class="jxr_linenumber" name="463" href="#463">463</a>         <em class="jxr_comment">// new functionality add it to the Handler, but make sure this</em>
<a class="jxr_linenumber" name="464" href="#464">464</a>         <em class="jxr_comment">// class calls into the Handler.</em>
<a class="jxr_linenumber" name="465" href="#465">465</a> 
<a class="jxr_linenumber" name="466" href="#466">466</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> stateChanged(ChangeEvent e) {
<a class="jxr_linenumber" name="467" href="#467">467</a>             getHandler().stateChanged(e);
<a class="jxr_linenumber" name="468" href="#468">468</a>         }
<a class="jxr_linenumber" name="469" href="#469">469</a>     }
<a class="jxr_linenumber" name="470" href="#470">470</a> 
<a class="jxr_linenumber" name="471" href="#471">471</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="472" href="#472">472</a> <em class="jxr_javadoccomment">     * Returns a &lt;code&gt;PropertyChangeListener&lt;/code&gt; that will be installed on</em>
<a class="jxr_linenumber" name="473" href="#473">473</a> <em class="jxr_javadoccomment">     * the vertical &lt;code&gt;JScrollBar&lt;/code&gt;.</em>
<a class="jxr_linenumber" name="474" href="#474">474</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="475" href="#475">475</a>     <strong class="jxr_keyword">private</strong> PropertyChangeListener createVSBPropertyChangeListener() {
<a class="jxr_linenumber" name="476" href="#476">476</a>         <strong class="jxr_keyword">return</strong> getHandler();
<a class="jxr_linenumber" name="477" href="#477">477</a>     }
<a class="jxr_linenumber" name="478" href="#478">478</a> 
<a class="jxr_linenumber" name="479" href="#479">479</a>     <strong class="jxr_keyword">protected</strong> ChangeListener createVSBChangeListener() {
<a class="jxr_linenumber" name="480" href="#480">480</a>         <strong class="jxr_keyword">return</strong> getHandler();
<a class="jxr_linenumber" name="481" href="#481">481</a>     }
<a class="jxr_linenumber" name="482" href="#482">482</a> 
<a class="jxr_linenumber" name="483" href="#483">483</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="484" href="#484">484</a> <em class="jxr_javadoccomment">     * MouseWheelHandler is an inner class which implements the</em>
<a class="jxr_linenumber" name="485" href="#485">485</a> <em class="jxr_javadoccomment">     * MouseWheelListener interface. MouseWheelHandler responds to</em>
<a class="jxr_linenumber" name="486" href="#486">486</a> <em class="jxr_javadoccomment">     * MouseWheelEvents by scrolling the JScrollPane appropriately. If the</em>
<a class="jxr_linenumber" name="487" href="#487">487</a> <em class="jxr_javadoccomment">     * scroll pane's &lt;code&gt;isWheelScrollingEnabled&lt;/code&gt; method returns false,</em>
<a class="jxr_linenumber" name="488" href="#488">488</a> <em class="jxr_javadoccomment">     * no scrolling occurs.</em>
<a class="jxr_linenumber" name="489" href="#489">489</a> <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="490" href="#490">490</a> <em class="jxr_javadoccomment">     * @see javax.swing.JScrollPane#isWheelScrollingEnabled</em>
<a class="jxr_linenumber" name="491" href="#491">491</a> <em class="jxr_javadoccomment">     * @see #createMouseWheelListener</em>
<a class="jxr_linenumber" name="492" href="#492">492</a> <em class="jxr_javadoccomment">     * @see java.awt.event.MouseWheelListener</em>
<a class="jxr_linenumber" name="493" href="#493">493</a> <em class="jxr_javadoccomment">     * @see java.awt.event.MouseWheelEvent</em>
<a class="jxr_linenumber" name="494" href="#494">494</a> <em class="jxr_javadoccomment">     * @since 1.4</em>
<a class="jxr_linenumber" name="495" href="#495">495</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="496" href="#496">496</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">class</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">MouseWheelHandler</a> <strong class="jxr_keyword">implements</strong> MouseWheelListener {
<a class="jxr_linenumber" name="497" href="#497">497</a> 
<a class="jxr_linenumber" name="498" href="#498">498</a>         <em class="jxr_comment">// NOTE: This class exists only for backward compatability. All</em>
<a class="jxr_linenumber" name="499" href="#499">499</a>         <em class="jxr_comment">// its functionality has been moved into Handler. If you need to add</em>
<a class="jxr_linenumber" name="500" href="#500">500</a>         <em class="jxr_comment">// new functionality add it to the Handler, but make sure this</em>
<a class="jxr_linenumber" name="501" href="#501">501</a>         <em class="jxr_comment">// class calls into the Handler.</em>
<a class="jxr_linenumber" name="502" href="#502">502</a> 
<a class="jxr_linenumber" name="503" href="#503">503</a>         <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="504" href="#504">504</a> <em class="jxr_javadoccomment">         * Called when the mouse wheel is rotated while over a JScrollPane.</em>
<a class="jxr_linenumber" name="505" href="#505">505</a> <em class="jxr_javadoccomment">         * </em>
<a class="jxr_linenumber" name="506" href="#506">506</a> <em class="jxr_javadoccomment">         * @param e</em>
<a class="jxr_linenumber" name="507" href="#507">507</a> <em class="jxr_javadoccomment">         *            MouseWheelEvent to be handled</em>
<a class="jxr_linenumber" name="508" href="#508">508</a> <em class="jxr_javadoccomment">         * @since 1.4</em>
<a class="jxr_linenumber" name="509" href="#509">509</a> <em class="jxr_javadoccomment">         */</em>
<a class="jxr_linenumber" name="510" href="#510">510</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> mouseWheelMoved(MouseWheelEvent e) {
<a class="jxr_linenumber" name="511" href="#511">511</a>             getHandler().mouseWheelMoved(e);
<a class="jxr_linenumber" name="512" href="#512">512</a>         }
<a class="jxr_linenumber" name="513" href="#513">513</a>     }
<a class="jxr_linenumber" name="514" href="#514">514</a> 
<a class="jxr_linenumber" name="515" href="#515">515</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="516" href="#516">516</a> <em class="jxr_javadoccomment">     * Creates an instance of MouseWheelListener, which is added to the</em>
<a class="jxr_linenumber" name="517" href="#517">517</a> <em class="jxr_javadoccomment">     * JScrollPane by installUI(). The returned MouseWheelListener is used to</em>
<a class="jxr_linenumber" name="518" href="#518">518</a> <em class="jxr_javadoccomment">     * handle mouse wheel-driven scrolling.</em>
<a class="jxr_linenumber" name="519" href="#519">519</a> <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="520" href="#520">520</a> <em class="jxr_javadoccomment">     * @return MouseWheelListener which implements wheel-driven scrolling</em>
<a class="jxr_linenumber" name="521" href="#521">521</a> <em class="jxr_javadoccomment">     * @see #installUI</em>
<a class="jxr_linenumber" name="522" href="#522">522</a> <em class="jxr_javadoccomment">     * @see MouseWheelHandler</em>
<a class="jxr_linenumber" name="523" href="#523">523</a> <em class="jxr_javadoccomment">     * @since 1.4</em>
<a class="jxr_linenumber" name="524" href="#524">524</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="525" href="#525">525</a>     <strong class="jxr_keyword">protected</strong> MouseWheelListener createMouseWheelListener() {
<a class="jxr_linenumber" name="526" href="#526">526</a>         <strong class="jxr_keyword">return</strong> getHandler();
<a class="jxr_linenumber" name="527" href="#527">527</a>     }
<a class="jxr_linenumber" name="528" href="#528">528</a> 
<a class="jxr_linenumber" name="529" href="#529">529</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> updateHorizontalScrollBar(PropertyChangeEvent pce) {
<a class="jxr_linenumber" name="530" href="#530">530</a>         updateScrollBar(pce, hsbChangeListener, hsbPropertyChangeListener);
<a class="jxr_linenumber" name="531" href="#531">531</a>     }
<a class="jxr_linenumber" name="532" href="#532">532</a> 
<a class="jxr_linenumber" name="533" href="#533">533</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> updateVerticalScrollBar(PropertyChangeEvent pce) {
<a class="jxr_linenumber" name="534" href="#534">534</a>         updateScrollBar(pce, vsbChangeListener, vsbPropertyChangeListener);
<a class="jxr_linenumber" name="535" href="#535">535</a>     }
<a class="jxr_linenumber" name="536" href="#536">536</a> 
<a class="jxr_linenumber" name="537" href="#537">537</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> updateScrollBar(PropertyChangeEvent pce, ChangeListener cl, PropertyChangeListener pcl) {
<a class="jxr_linenumber" name="538" href="#538">538</a>         JScrollBar sb = (JScrollBar) pce.getOldValue();
<a class="jxr_linenumber" name="539" href="#539">539</a>         <strong class="jxr_keyword">if</strong> (sb != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="540" href="#540">540</a>             <strong class="jxr_keyword">if</strong> (cl != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="541" href="#541">541</a>                 sb.getModel().removeChangeListener(cl);
<a class="jxr_linenumber" name="542" href="#542">542</a>             }
<a class="jxr_linenumber" name="543" href="#543">543</a>             <strong class="jxr_keyword">if</strong> (pcl != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="544" href="#544">544</a>                 sb.removePropertyChangeListener(pcl);
<a class="jxr_linenumber" name="545" href="#545">545</a>             }
<a class="jxr_linenumber" name="546" href="#546">546</a>         }
<a class="jxr_linenumber" name="547" href="#547">547</a>         sb = (JScrollBar) pce.getNewValue();
<a class="jxr_linenumber" name="548" href="#548">548</a>         <strong class="jxr_keyword">if</strong> (sb != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="549" href="#549">549</a>             <strong class="jxr_keyword">if</strong> (cl != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="550" href="#550">550</a>                 sb.getModel().addChangeListener(cl);
<a class="jxr_linenumber" name="551" href="#551">551</a>             }
<a class="jxr_linenumber" name="552" href="#552">552</a>             <strong class="jxr_keyword">if</strong> (pcl != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="553" href="#553">553</a>                 sb.addPropertyChangeListener(pcl);
<a class="jxr_linenumber" name="554" href="#554">554</a>             }
<a class="jxr_linenumber" name="555" href="#555">555</a>         }
<a class="jxr_linenumber" name="556" href="#556">556</a>     }
<a class="jxr_linenumber" name="557" href="#557">557</a> 
<a class="jxr_linenumber" name="558" href="#558">558</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">PropertyChangeHandler</a> <strong class="jxr_keyword">implements</strong> PropertyChangeListener {
<a class="jxr_linenumber" name="559" href="#559">559</a> 
<a class="jxr_linenumber" name="560" href="#560">560</a>         <em class="jxr_comment">// NOTE: This class exists only for backward compatability. All</em>
<a class="jxr_linenumber" name="561" href="#561">561</a>         <em class="jxr_comment">// its functionality has been moved into Handler. If you need to add</em>
<a class="jxr_linenumber" name="562" href="#562">562</a>         <em class="jxr_comment">// new functionality add it to the Handler, but make sure this</em>
<a class="jxr_linenumber" name="563" href="#563">563</a>         <em class="jxr_comment">// class calls into the Handler.</em>
<a class="jxr_linenumber" name="564" href="#564">564</a> 
<a class="jxr_linenumber" name="565" href="#565">565</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> propertyChange(PropertyChangeEvent e) {
<a class="jxr_linenumber" name="566" href="#566">566</a>             getHandler().propertyChange(e);
<a class="jxr_linenumber" name="567" href="#567">567</a>         }
<a class="jxr_linenumber" name="568" href="#568">568</a>     }
<a class="jxr_linenumber" name="569" href="#569">569</a> 
<a class="jxr_linenumber" name="570" href="#570">570</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="571" href="#571">571</a> <em class="jxr_javadoccomment">     * Creates an instance of PropertyChangeListener that's added to the</em>
<a class="jxr_linenumber" name="572" href="#572">572</a> <em class="jxr_javadoccomment">     * JScrollPane by installUI(). Subclasses can override this method to return</em>
<a class="jxr_linenumber" name="573" href="#573">573</a> <em class="jxr_javadoccomment">     * a custom PropertyChangeListener, e.g.</em>
<a class="jxr_linenumber" name="574" href="#574">574</a> <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="575" href="#575">575</a> <em class="jxr_javadoccomment">     * &lt;pre&gt;</em>
<a class="jxr_linenumber" name="576" href="#576">576</a> <em class="jxr_javadoccomment">     * class MyScrollPaneUI extends BasicScrollPaneUI {</em>
<a class="jxr_linenumber" name="577" href="#577">577</a> <em class="jxr_javadoccomment">     *    protected PropertyChangeListener &amp;lt;b&amp;gt;createPropertyChangeListener&amp;lt;/b&amp;gt;() {</em>
<a class="jxr_linenumber" name="578" href="#578">578</a> <em class="jxr_javadoccomment">     *        return new MyPropertyChangeListener();</em>
<a class="jxr_linenumber" name="579" href="#579">579</a> <em class="jxr_javadoccomment">     *    }</em>
<a class="jxr_linenumber" name="580" href="#580">580</a> <em class="jxr_javadoccomment">     *    public class MyPropertyChangeListener extends PropertyChangeListener {</em>
<a class="jxr_linenumber" name="581" href="#581">581</a> <em class="jxr_javadoccomment">     *        public void propertyChange(PropertyChangeEvent e) {</em>
<a class="jxr_linenumber" name="582" href="#582">582</a> <em class="jxr_javadoccomment">     *            if (e.getPropertyName().equals(&amp;quot;viewport&amp;quot;)) {</em>
<a class="jxr_linenumber" name="583" href="#583">583</a> <em class="jxr_javadoccomment">     *                // do some extra work when the viewport changes</em>
<a class="jxr_linenumber" name="584" href="#584">584</a> <em class="jxr_javadoccomment">     *            }</em>
<a class="jxr_linenumber" name="585" href="#585">585</a> <em class="jxr_javadoccomment">     *            super.propertyChange(e);</em>
<a class="jxr_linenumber" name="586" href="#586">586</a> <em class="jxr_javadoccomment">     *        }</em>
<a class="jxr_linenumber" name="587" href="#587">587</a> <em class="jxr_javadoccomment">     *    }</em>
<a class="jxr_linenumber" name="588" href="#588">588</a> <em class="jxr_javadoccomment">     * }</em>
<a class="jxr_linenumber" name="589" href="#589">589</a> <em class="jxr_javadoccomment">     * &lt;/pre&gt;</em>
<a class="jxr_linenumber" name="590" href="#590">590</a> <em class="jxr_javadoccomment">     * </em>
<a class="jxr_linenumber" name="591" href="#591">591</a> <em class="jxr_javadoccomment">     * @see java.beans.PropertyChangeListener</em>
<a class="jxr_linenumber" name="592" href="#592">592</a> <em class="jxr_javadoccomment">     * @see #installUI</em>
<a class="jxr_linenumber" name="593" href="#593">593</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="594" href="#594">594</a>     <strong class="jxr_keyword">protected</strong> PropertyChangeListener createPropertyChangeListener() {
<a class="jxr_linenumber" name="595" href="#595">595</a>         <strong class="jxr_keyword">return</strong> getHandler();
<a class="jxr_linenumber" name="596" href="#596">596</a>     }
<a class="jxr_linenumber" name="597" href="#597">597</a> 
<a class="jxr_linenumber" name="598" href="#598">598</a>     <strong class="jxr_keyword">class</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">Handler</a> <strong class="jxr_keyword">implements</strong> ChangeListener, PropertyChangeListener, MouseWheelListener {
<a class="jxr_linenumber" name="599" href="#599">599</a>         <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="600" href="#600">600</a>         <em class="jxr_comment">// MouseWheelListener</em>
<a class="jxr_linenumber" name="601" href="#601">601</a>         <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="602" href="#602">602</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> mouseWheelMoved(MouseWheelEvent e) {
<a class="jxr_linenumber" name="603" href="#603">603</a>             <strong class="jxr_keyword">if</strong> (scrollpane.isWheelScrollingEnabled() &amp;&amp; e.getWheelRotation() != 0) {
<a class="jxr_linenumber" name="604" href="#604">604</a>                 <strong class="jxr_keyword">boolean</strong> isHorizontal = (e.getModifiersEx() &amp; MouseWheelEvent.SHIFT_DOWN_MASK) != 0;
<a class="jxr_linenumber" name="605" href="#605">605</a>                 JScrollBar toScroll = scrollpane.getVerticalScrollBar();
<a class="jxr_linenumber" name="606" href="#606">606</a>                 <strong class="jxr_keyword">int</strong> direction = e.getWheelRotation() &lt; 0 ? -1 : 1;
<a class="jxr_linenumber" name="607" href="#607">607</a>                 <strong class="jxr_keyword">int</strong> orientation = SwingConstants.VERTICAL;
<a class="jxr_linenumber" name="608" href="#608">608</a> 
<a class="jxr_linenumber" name="609" href="#609">609</a>                 <em class="jxr_comment">// find which scrollbar to scroll, or return if none</em>
<a class="jxr_linenumber" name="610" href="#610">610</a>                 <strong class="jxr_keyword">if</strong> (toScroll == <strong class="jxr_keyword">null</strong> || !toScroll.isVisible() || isHorizontal) {
<a class="jxr_linenumber" name="611" href="#611">611</a>                     toScroll = scrollpane.getHorizontalScrollBar();
<a class="jxr_linenumber" name="612" href="#612">612</a>                     <strong class="jxr_keyword">if</strong> (toScroll == <strong class="jxr_keyword">null</strong> || !toScroll.isVisible()) {
<a class="jxr_linenumber" name="613" href="#613">613</a>                         <strong class="jxr_keyword">return</strong>;
<a class="jxr_linenumber" name="614" href="#614">614</a>                     }
<a class="jxr_linenumber" name="615" href="#615">615</a>                     orientation = SwingConstants.HORIZONTAL;
<a class="jxr_linenumber" name="616" href="#616">616</a>                 }
<a class="jxr_linenumber" name="617" href="#617">617</a> 
<a class="jxr_linenumber" name="618" href="#618">618</a>                 <strong class="jxr_keyword">if</strong> (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
<a class="jxr_linenumber" name="619" href="#619">619</a>                     JViewport vp = scrollpane.getViewport();
<a class="jxr_linenumber" name="620" href="#620">620</a>                     <strong class="jxr_keyword">if</strong> (vp == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="621" href="#621">621</a>                         <strong class="jxr_keyword">return</strong>;
<a class="jxr_linenumber" name="622" href="#622">622</a>                     }
<a class="jxr_linenumber" name="623" href="#623">623</a>                     Component comp = vp.getView();
<a class="jxr_linenumber" name="624" href="#624">624</a>                     <strong class="jxr_keyword">int</strong> units = Math.abs(e.getUnitsToScroll());
<a class="jxr_linenumber" name="625" href="#625">625</a> 
<a class="jxr_linenumber" name="626" href="#626">626</a>                     <em class="jxr_comment">// When the scrolling speed is set to maximum, it's possible</em>
<a class="jxr_linenumber" name="627" href="#627">627</a>                     <em class="jxr_comment">// for a single wheel click to scroll by more units than</em>
<a class="jxr_linenumber" name="628" href="#628">628</a>                     <em class="jxr_comment">// will fit in the visible area. This makes it</em>
<a class="jxr_linenumber" name="629" href="#629">629</a>                     <em class="jxr_comment">// hard/impossible to get to certain parts of the scrolling</em>
<a class="jxr_linenumber" name="630" href="#630">630</a>                     <em class="jxr_comment">// Component with the wheel. To make for more accurate</em>
<a class="jxr_linenumber" name="631" href="#631">631</a>                     <em class="jxr_comment">// low-speed scrolling, we limit scrolling to the block</em>
<a class="jxr_linenumber" name="632" href="#632">632</a>                     <em class="jxr_comment">// increment if the wheel was only rotated one click.</em>
<a class="jxr_linenumber" name="633" href="#633">633</a>                     <strong class="jxr_keyword">boolean</strong> limitScroll = Math.abs(e.getWheelRotation()) == 1;
<a class="jxr_linenumber" name="634" href="#634">634</a> 
<a class="jxr_linenumber" name="635" href="#635">635</a>                     <em class="jxr_comment">// Check if we should use the visibleRect trick</em>
<a class="jxr_linenumber" name="636" href="#636">636</a>                     Object fastWheelScroll = toScroll.getClientProperty(<span class="jxr_string">"JScrollBar.fastWheelScrolling"</span>);
<a class="jxr_linenumber" name="637" href="#637">637</a>                     <strong class="jxr_keyword">if</strong> (Boolean.TRUE == fastWheelScroll &amp;&amp; comp instanceof Scrollable) {
<a class="jxr_linenumber" name="638" href="#638">638</a>                         <em class="jxr_comment">// 5078454: Under maximum acceleration, we may scroll</em>
<a class="jxr_linenumber" name="639" href="#639">639</a>                         <em class="jxr_comment">// by many 100s of units in ~1 second.</em>
<a class="jxr_linenumber" name="640" href="#640">640</a>                         <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="641" href="#641">641</a>                         <em class="jxr_comment">// BasicScrollBarUI.scrollByUnits() can bog down the EDT</em>
<a class="jxr_linenumber" name="642" href="#642">642</a>                         <em class="jxr_comment">// with repaints in this situation. However, the</em>
<a class="jxr_linenumber" name="643" href="#643">643</a>                         <em class="jxr_comment">// Scrollable interface allows us to pass in an</em>
<a class="jxr_linenumber" name="644" href="#644">644</a>                         <em class="jxr_comment">// arbitrary visibleRect. This allows us to accurately</em>
<a class="jxr_linenumber" name="645" href="#645">645</a>                         <em class="jxr_comment">// calculate the total scroll amount, and then update</em>
<a class="jxr_linenumber" name="646" href="#646">646</a>                         <em class="jxr_comment">// the GUI once. This technique provides much faster</em>
<a class="jxr_linenumber" name="647" href="#647">647</a>                         <em class="jxr_comment">// accelerated wheel scrolling.</em>
<a class="jxr_linenumber" name="648" href="#648">648</a>                         Scrollable scrollComp = (Scrollable) comp;
<a class="jxr_linenumber" name="649" href="#649">649</a>                         Rectangle viewRect = vp.getViewRect();
<a class="jxr_linenumber" name="650" href="#650">650</a>                         <strong class="jxr_keyword">int</strong> startingX = viewRect.x;
<a class="jxr_linenumber" name="651" href="#651">651</a>                         <strong class="jxr_keyword">boolean</strong> leftToRight = comp.getComponentOrientation().isLeftToRight();
<a class="jxr_linenumber" name="652" href="#652">652</a>                         <strong class="jxr_keyword">int</strong> scrollMin = toScroll.getMinimum();
<a class="jxr_linenumber" name="653" href="#653">653</a>                         <strong class="jxr_keyword">int</strong> scrollMax = toScroll.getMaximum() - toScroll.getModel().getExtent();
<a class="jxr_linenumber" name="654" href="#654">654</a> 
<a class="jxr_linenumber" name="655" href="#655">655</a>                         <strong class="jxr_keyword">if</strong> (limitScroll) {
<a class="jxr_linenumber" name="656" href="#656">656</a>                             <strong class="jxr_keyword">int</strong> blockIncr = scrollComp.getScrollableBlockIncrement(viewRect, orientation, direction);
<a class="jxr_linenumber" name="657" href="#657">657</a>                             <strong class="jxr_keyword">if</strong> (direction &lt; 0) {
<a class="jxr_linenumber" name="658" href="#658">658</a>                                 scrollMin = Math.max(scrollMin, toScroll.getValue() - blockIncr);
<a class="jxr_linenumber" name="659" href="#659">659</a>                             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="660" href="#660">660</a>                                 scrollMax = Math.min(scrollMax, toScroll.getValue() + blockIncr);
<a class="jxr_linenumber" name="661" href="#661">661</a>                             }
<a class="jxr_linenumber" name="662" href="#662">662</a>                         }
<a class="jxr_linenumber" name="663" href="#663">663</a> 
<a class="jxr_linenumber" name="664" href="#664">664</a>                         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; units; i++) {
<a class="jxr_linenumber" name="665" href="#665">665</a>                             <strong class="jxr_keyword">int</strong> unitIncr = scrollComp.getScrollableUnitIncrement(viewRect, orientation, direction);
<a class="jxr_linenumber" name="666" href="#666">666</a>                             <em class="jxr_comment">// Modify the visible rect for the next unit, and</em>
<a class="jxr_linenumber" name="667" href="#667">667</a>                             <em class="jxr_comment">// check to see if we're at the end already.</em>
<a class="jxr_linenumber" name="668" href="#668">668</a>                             <strong class="jxr_keyword">if</strong> (orientation == SwingConstants.VERTICAL) {
<a class="jxr_linenumber" name="669" href="#669">669</a>                                 <strong class="jxr_keyword">if</strong> (direction &lt; 0) {
<a class="jxr_linenumber" name="670" href="#670">670</a>                                     viewRect.y -= unitIncr;
<a class="jxr_linenumber" name="671" href="#671">671</a>                                     <strong class="jxr_keyword">if</strong> (viewRect.y &lt;= scrollMin) {
<a class="jxr_linenumber" name="672" href="#672">672</a>                                         viewRect.y = scrollMin;
<a class="jxr_linenumber" name="673" href="#673">673</a>                                         <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="674" href="#674">674</a>                                     }
<a class="jxr_linenumber" name="675" href="#675">675</a>                                 } <strong class="jxr_keyword">else</strong> { <em class="jxr_comment">// (direction &gt; 0</em>
<a class="jxr_linenumber" name="676" href="#676">676</a>                                     viewRect.y += unitIncr;
<a class="jxr_linenumber" name="677" href="#677">677</a>                                     <strong class="jxr_keyword">if</strong> (viewRect.y &gt;= scrollMax) {
<a class="jxr_linenumber" name="678" href="#678">678</a>                                         viewRect.y = scrollMax;
<a class="jxr_linenumber" name="679" href="#679">679</a>                                         <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="680" href="#680">680</a>                                     }
<a class="jxr_linenumber" name="681" href="#681">681</a>                                 }
<a class="jxr_linenumber" name="682" href="#682">682</a>                             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="683" href="#683">683</a>                                 <em class="jxr_comment">// Scroll left</em>
<a class="jxr_linenumber" name="684" href="#684">684</a>                                 <strong class="jxr_keyword">if</strong> ((leftToRight &amp;&amp; direction &lt; 0) || (!leftToRight &amp;&amp; direction &gt; 0)) {
<a class="jxr_linenumber" name="685" href="#685">685</a>                                     viewRect.x -= unitIncr;
<a class="jxr_linenumber" name="686" href="#686">686</a>                                     <strong class="jxr_keyword">if</strong> (leftToRight) {
<a class="jxr_linenumber" name="687" href="#687">687</a>                                         <strong class="jxr_keyword">if</strong> (viewRect.x &lt; scrollMin) {
<a class="jxr_linenumber" name="688" href="#688">688</a>                                             viewRect.x = scrollMin;
<a class="jxr_linenumber" name="689" href="#689">689</a>                                             <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="690" href="#690">690</a>                                         }
<a class="jxr_linenumber" name="691" href="#691">691</a>                                     }
<a class="jxr_linenumber" name="692" href="#692">692</a>                                 }
<a class="jxr_linenumber" name="693" href="#693">693</a>                                 <em class="jxr_comment">// Scroll right</em>
<a class="jxr_linenumber" name="694" href="#694">694</a>                                 <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> ((leftToRight &amp;&amp; direction &gt; 0) || (!leftToRight &amp;&amp; direction &lt; 0)) {
<a class="jxr_linenumber" name="695" href="#695">695</a>                                     viewRect.x += unitIncr;
<a class="jxr_linenumber" name="696" href="#696">696</a>                                     <strong class="jxr_keyword">if</strong> (leftToRight) {
<a class="jxr_linenumber" name="697" href="#697">697</a>                                         <strong class="jxr_keyword">if</strong> (viewRect.x &gt; scrollMax) {
<a class="jxr_linenumber" name="698" href="#698">698</a>                                             viewRect.x = scrollMax;
<a class="jxr_linenumber" name="699" href="#699">699</a>                                             <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="700" href="#700">700</a>                                         }
<a class="jxr_linenumber" name="701" href="#701">701</a>                                     }
<a class="jxr_linenumber" name="702" href="#702">702</a>                                 } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="703" href="#703">703</a>                                     assert false : <span class="jxr_string">"Non-sensical ComponentOrientation / scroll direction"</span>;
<a class="jxr_linenumber" name="704" href="#704">704</a>                                 }
<a class="jxr_linenumber" name="705" href="#705">705</a>                             }
<a class="jxr_linenumber" name="706" href="#706">706</a>                         }
<a class="jxr_linenumber" name="707" href="#707">707</a>                         <em class="jxr_comment">// Set the final view position on the ScrollBar</em>
<a class="jxr_linenumber" name="708" href="#708">708</a>                         <strong class="jxr_keyword">if</strong> (orientation == SwingConstants.VERTICAL) {
<a class="jxr_linenumber" name="709" href="#709">709</a>                             toScroll.setValue(viewRect.y);
<a class="jxr_linenumber" name="710" href="#710">710</a>                         } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="711" href="#711">711</a>                             <strong class="jxr_keyword">if</strong> (leftToRight) {
<a class="jxr_linenumber" name="712" href="#712">712</a>                                 toScroll.setValue(viewRect.x);
<a class="jxr_linenumber" name="713" href="#713">713</a>                             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="714" href="#714">714</a>                                 <em class="jxr_comment">// rightToLeft scrollbars are oriented with</em>
<a class="jxr_linenumber" name="715" href="#715">715</a>                                 <em class="jxr_comment">// minValue on the right and maxValue on the</em>
<a class="jxr_linenumber" name="716" href="#716">716</a>                                 <em class="jxr_comment">// left.</em>
<a class="jxr_linenumber" name="717" href="#717">717</a>                                 <strong class="jxr_keyword">int</strong> newPos = toScroll.getValue() - (viewRect.x - startingX);
<a class="jxr_linenumber" name="718" href="#718">718</a>                                 <strong class="jxr_keyword">if</strong> (newPos &lt; scrollMin) {
<a class="jxr_linenumber" name="719" href="#719">719</a>                                     newPos = scrollMin;
<a class="jxr_linenumber" name="720" href="#720">720</a>                                 } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (newPos &gt; scrollMax) {
<a class="jxr_linenumber" name="721" href="#721">721</a>                                     newPos = scrollMax;
<a class="jxr_linenumber" name="722" href="#722">722</a>                                 }
<a class="jxr_linenumber" name="723" href="#723">723</a>                                 toScroll.setValue(newPos);
<a class="jxr_linenumber" name="724" href="#724">724</a>                             }
<a class="jxr_linenumber" name="725" href="#725">725</a>                         }
<a class="jxr_linenumber" name="726" href="#726">726</a>                     } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="727" href="#727">727</a>                         <em class="jxr_comment">// Viewport's view is not a Scrollable, or fast wheel</em>
<a class="jxr_linenumber" name="728" href="#728">728</a>                         <em class="jxr_comment">// scrolling is not enabled.</em>
<a class="jxr_linenumber" name="729" href="#729">729</a>                         scrollByUnits(toScroll, direction, units, limitScroll);
<a class="jxr_linenumber" name="730" href="#730">730</a>                     }
<a class="jxr_linenumber" name="731" href="#731">731</a>                 } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (e.getScrollType() == MouseWheelEvent.WHEEL_BLOCK_SCROLL) {
<a class="jxr_linenumber" name="732" href="#732">732</a>                     scrollByBlock(toScroll, direction);
<a class="jxr_linenumber" name="733" href="#733">733</a>                 }
<a class="jxr_linenumber" name="734" href="#734">734</a>                 e.consume();
<a class="jxr_linenumber" name="735" href="#735">735</a>             }
<a class="jxr_linenumber" name="736" href="#736">736</a>         }
<a class="jxr_linenumber" name="737" href="#737">737</a> 
<a class="jxr_linenumber" name="738" href="#738">738</a>         <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="739" href="#739">739</a> <em class="jxr_comment">         * Method for scrolling by a block increment. Added for mouse wheel</em>
<a class="jxr_linenumber" name="740" href="#740">740</a> <em class="jxr_comment">         * scrolling support, RFE 4202656.</em>
<a class="jxr_linenumber" name="741" href="#741">741</a> <em class="jxr_comment">         */</em>
<a class="jxr_linenumber" name="742" href="#742">742</a>         <strong class="jxr_keyword">void</strong> scrollByBlock(JScrollBar scrollbar, <strong class="jxr_keyword">int</strong> direction) {
<a class="jxr_linenumber" name="743" href="#743">743</a>             <em class="jxr_comment">// This method is called from BasicScrollPaneUI to implement wheel</em>
<a class="jxr_linenumber" name="744" href="#744">744</a>             <em class="jxr_comment">// scrolling, and also from scrollByBlock().</em>
<a class="jxr_linenumber" name="745" href="#745">745</a>             <strong class="jxr_keyword">int</strong> oldValue = scrollbar.getValue();
<a class="jxr_linenumber" name="746" href="#746">746</a>             <strong class="jxr_keyword">int</strong> blockIncrement = scrollbar.getBlockIncrement(direction);
<a class="jxr_linenumber" name="747" href="#747">747</a>             <strong class="jxr_keyword">int</strong> delta = blockIncrement * ((direction &gt; 0) ? +1 : -1);
<a class="jxr_linenumber" name="748" href="#748">748</a>             <strong class="jxr_keyword">int</strong> newValue = oldValue + delta;
<a class="jxr_linenumber" name="749" href="#749">749</a> 
<a class="jxr_linenumber" name="750" href="#750">750</a>             <em class="jxr_comment">// Check for overflow.</em>
<a class="jxr_linenumber" name="751" href="#751">751</a>             <strong class="jxr_keyword">if</strong> (delta &gt; 0 &amp;&amp; newValue &lt; oldValue) {
<a class="jxr_linenumber" name="752" href="#752">752</a>                 newValue = scrollbar.getMaximum();
<a class="jxr_linenumber" name="753" href="#753">753</a>             } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (delta &lt; 0 &amp;&amp; newValue &gt; oldValue) {
<a class="jxr_linenumber" name="754" href="#754">754</a>                 newValue = scrollbar.getMinimum();
<a class="jxr_linenumber" name="755" href="#755">755</a>             }
<a class="jxr_linenumber" name="756" href="#756">756</a> 
<a class="jxr_linenumber" name="757" href="#757">757</a>             scrollbar.setValue(newValue);
<a class="jxr_linenumber" name="758" href="#758">758</a>         }
<a class="jxr_linenumber" name="759" href="#759">759</a> 
<a class="jxr_linenumber" name="760" href="#760">760</a>         <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="761" href="#761">761</a> <em class="jxr_comment">         * Method for scrolling by a unit increment. Added for mouse wheel</em>
<a class="jxr_linenumber" name="762" href="#762">762</a> <em class="jxr_comment">         * scrolling support, RFE 4202656.</em>
<a class="jxr_linenumber" name="763" href="#763">763</a> <em class="jxr_comment">         * </em>
<a class="jxr_linenumber" name="764" href="#764">764</a> <em class="jxr_comment">         * If limitByBlock is set to true, the scrollbar will scroll at least 1</em>
<a class="jxr_linenumber" name="765" href="#765">765</a> <em class="jxr_comment">         * unit increment, but will not scroll farther than the block increment.</em>
<a class="jxr_linenumber" name="766" href="#766">766</a> <em class="jxr_comment">         * See BasicScrollPaneUI.Handler.mouseWheelMoved().</em>
<a class="jxr_linenumber" name="767" href="#767">767</a> <em class="jxr_comment">         */</em>
<a class="jxr_linenumber" name="768" href="#768">768</a>         <strong class="jxr_keyword">void</strong> scrollByUnits(JScrollBar scrollbar, <strong class="jxr_keyword">int</strong> direction, <strong class="jxr_keyword">int</strong> units, <strong class="jxr_keyword">boolean</strong> limitToBlock) {
<a class="jxr_linenumber" name="769" href="#769">769</a>             <em class="jxr_comment">// This method is called from BasicScrollPaneUI to implement wheel</em>
<a class="jxr_linenumber" name="770" href="#770">770</a>             <em class="jxr_comment">// scrolling, as well as from scrollByUnit().</em>
<a class="jxr_linenumber" name="771" href="#771">771</a>             <strong class="jxr_keyword">int</strong> delta;
<a class="jxr_linenumber" name="772" href="#772">772</a>             <strong class="jxr_keyword">int</strong> limit = -1;
<a class="jxr_linenumber" name="773" href="#773">773</a> 
<a class="jxr_linenumber" name="774" href="#774">774</a>             <strong class="jxr_keyword">if</strong> (limitToBlock) {
<a class="jxr_linenumber" name="775" href="#775">775</a>                 <strong class="jxr_keyword">if</strong> (direction &lt; 0) {
<a class="jxr_linenumber" name="776" href="#776">776</a>                     limit = scrollbar.getValue() - scrollbar.getBlockIncrement(direction);
<a class="jxr_linenumber" name="777" href="#777">777</a>                 } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="778" href="#778">778</a>                     limit = scrollbar.getValue() + scrollbar.getBlockIncrement(direction);
<a class="jxr_linenumber" name="779" href="#779">779</a>                 }
<a class="jxr_linenumber" name="780" href="#780">780</a>             }
<a class="jxr_linenumber" name="781" href="#781">781</a> 
<a class="jxr_linenumber" name="782" href="#782">782</a>             <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; units; i++) {
<a class="jxr_linenumber" name="783" href="#783">783</a>                 <strong class="jxr_keyword">if</strong> (direction &gt; 0) {
<a class="jxr_linenumber" name="784" href="#784">784</a>                     delta = scrollbar.getUnitIncrement(direction);
<a class="jxr_linenumber" name="785" href="#785">785</a>                 } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="786" href="#786">786</a>                     delta = -scrollbar.getUnitIncrement(direction);
<a class="jxr_linenumber" name="787" href="#787">787</a>                 }
<a class="jxr_linenumber" name="788" href="#788">788</a> 
<a class="jxr_linenumber" name="789" href="#789">789</a>                 <strong class="jxr_keyword">int</strong> oldValue = scrollbar.getValue();
<a class="jxr_linenumber" name="790" href="#790">790</a>                 <strong class="jxr_keyword">int</strong> newValue = oldValue + delta;
<a class="jxr_linenumber" name="791" href="#791">791</a> 
<a class="jxr_linenumber" name="792" href="#792">792</a>                 <em class="jxr_comment">// Check for overflow.</em>
<a class="jxr_linenumber" name="793" href="#793">793</a>                 <strong class="jxr_keyword">if</strong> (delta &gt; 0 &amp;&amp; newValue &lt; oldValue) {
<a class="jxr_linenumber" name="794" href="#794">794</a>                     newValue = scrollbar.getMaximum();
<a class="jxr_linenumber" name="795" href="#795">795</a>                 } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (delta &lt; 0 &amp;&amp; newValue &gt; oldValue) {
<a class="jxr_linenumber" name="796" href="#796">796</a>                     newValue = scrollbar.getMinimum();
<a class="jxr_linenumber" name="797" href="#797">797</a>                 }
<a class="jxr_linenumber" name="798" href="#798">798</a>                 <strong class="jxr_keyword">if</strong> (oldValue == newValue) {
<a class="jxr_linenumber" name="799" href="#799">799</a>                     <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="800" href="#800">800</a>                 }
<a class="jxr_linenumber" name="801" href="#801">801</a> 
<a class="jxr_linenumber" name="802" href="#802">802</a>                 <strong class="jxr_keyword">if</strong> (limitToBlock &amp;&amp; i &gt; 0) {
<a class="jxr_linenumber" name="803" href="#803">803</a>                     assert limit != -1;
<a class="jxr_linenumber" name="804" href="#804">804</a>                     <strong class="jxr_keyword">if</strong> ((direction &lt; 0 &amp;&amp; newValue &lt; limit) || (direction &gt; 0 &amp;&amp; newValue &gt; limit)) {
<a class="jxr_linenumber" name="805" href="#805">805</a>                         <strong class="jxr_keyword">break</strong>;
<a class="jxr_linenumber" name="806" href="#806">806</a>                     }
<a class="jxr_linenumber" name="807" href="#807">807</a>                 }
<a class="jxr_linenumber" name="808" href="#808">808</a>                 scrollbar.setValue(newValue);
<a class="jxr_linenumber" name="809" href="#809">809</a>             }
<a class="jxr_linenumber" name="810" href="#810">810</a>         }
<a class="jxr_linenumber" name="811" href="#811">811</a> 
<a class="jxr_linenumber" name="812" href="#812">812</a>         <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="813" href="#813">813</a>         <em class="jxr_comment">// ChangeListener: This is added to the vieport, and hsb/vsb models.</em>
<a class="jxr_linenumber" name="814" href="#814">814</a>         <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="815" href="#815">815</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> stateChanged(ChangeEvent e) {
<a class="jxr_linenumber" name="816" href="#816">816</a>             JViewport viewport = scrollpane.getViewport();
<a class="jxr_linenumber" name="817" href="#817">817</a> 
<a class="jxr_linenumber" name="818" href="#818">818</a>             <strong class="jxr_keyword">if</strong> (viewport != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="819" href="#819">819</a>                 <strong class="jxr_keyword">if</strong> (e.getSource() == viewport) {
<a class="jxr_linenumber" name="820" href="#820">820</a>                     viewportStateChanged(e);
<a class="jxr_linenumber" name="821" href="#821">821</a>                 } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="822" href="#822">822</a>                     JScrollBar hsb = scrollpane.getHorizontalScrollBar();
<a class="jxr_linenumber" name="823" href="#823">823</a>                     <strong class="jxr_keyword">if</strong> (hsb != <strong class="jxr_keyword">null</strong> &amp;&amp; e.getSource() == hsb.getModel()) {
<a class="jxr_linenumber" name="824" href="#824">824</a>                         hsbStateChanged(viewport, e);
<a class="jxr_linenumber" name="825" href="#825">825</a>                     } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="826" href="#826">826</a>                         JScrollBar vsb = scrollpane.getVerticalScrollBar();
<a class="jxr_linenumber" name="827" href="#827">827</a>                         <strong class="jxr_keyword">if</strong> (vsb != <strong class="jxr_keyword">null</strong> &amp;&amp; e.getSource() == vsb.getModel()) {
<a class="jxr_linenumber" name="828" href="#828">828</a>                             vsbStateChanged(viewport, e);
<a class="jxr_linenumber" name="829" href="#829">829</a>                         }
<a class="jxr_linenumber" name="830" href="#830">830</a>                     }
<a class="jxr_linenumber" name="831" href="#831">831</a>                 }
<a class="jxr_linenumber" name="832" href="#832">832</a>             }
<a class="jxr_linenumber" name="833" href="#833">833</a>         }
<a class="jxr_linenumber" name="834" href="#834">834</a> 
<a class="jxr_linenumber" name="835" href="#835">835</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> vsbStateChanged(JViewport viewport, ChangeEvent e) {
<a class="jxr_linenumber" name="836" href="#836">836</a>             BoundedRangeModel model = (BoundedRangeModel) (e.getSource());
<a class="jxr_linenumber" name="837" href="#837">837</a>             Point p = viewport.getViewPosition();
<a class="jxr_linenumber" name="838" href="#838">838</a>             p.y = model.getValue();
<a class="jxr_linenumber" name="839" href="#839">839</a>             viewport.setViewPosition(p);
<a class="jxr_linenumber" name="840" href="#840">840</a>         }
<a class="jxr_linenumber" name="841" href="#841">841</a> 
<a class="jxr_linenumber" name="842" href="#842">842</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> hsbStateChanged(JViewport viewport, ChangeEvent e) {
<a class="jxr_linenumber" name="843" href="#843">843</a>             BoundedRangeModel model = (BoundedRangeModel) (e.getSource());
<a class="jxr_linenumber" name="844" href="#844">844</a>             Point p = viewport.getViewPosition();
<a class="jxr_linenumber" name="845" href="#845">845</a>             <strong class="jxr_keyword">int</strong> value = model.getValue();
<a class="jxr_linenumber" name="846" href="#846">846</a>             <strong class="jxr_keyword">if</strong> (scrollpane.getComponentOrientation().isLeftToRight()) {
<a class="jxr_linenumber" name="847" href="#847">847</a>                 p.x = value;
<a class="jxr_linenumber" name="848" href="#848">848</a>             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="849" href="#849">849</a>                 <strong class="jxr_keyword">int</strong> max = viewport.getViewSize().width;
<a class="jxr_linenumber" name="850" href="#850">850</a>                 <strong class="jxr_keyword">int</strong> extent = viewport.getExtentSize().width;
<a class="jxr_linenumber" name="851" href="#851">851</a>                 <strong class="jxr_keyword">int</strong> oldX = p.x;
<a class="jxr_linenumber" name="852" href="#852">852</a> 
<a class="jxr_linenumber" name="853" href="#853">853</a>                 <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="854" href="#854">854</a> <em class="jxr_comment">                 * Set new X coordinate based on "value".</em>
<a class="jxr_linenumber" name="855" href="#855">855</a> <em class="jxr_comment">                 */</em>
<a class="jxr_linenumber" name="856" href="#856">856</a>                 p.x = max - extent - value;
<a class="jxr_linenumber" name="857" href="#857">857</a> 
<a class="jxr_linenumber" name="858" href="#858">858</a>                 <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="859" href="#859">859</a> <em class="jxr_comment">                 * If setValue() was called before "extent" was fixed, turn</em>
<a class="jxr_linenumber" name="860" href="#860">860</a> <em class="jxr_comment">                 * setValueCalled flag on.</em>
<a class="jxr_linenumber" name="861" href="#861">861</a> <em class="jxr_comment">                 */</em>
<a class="jxr_linenumber" name="862" href="#862">862</a>                 <strong class="jxr_keyword">if</strong> ((extent == 0) &amp;&amp; (value != 0) &amp;&amp; (oldX == max)) {
<a class="jxr_linenumber" name="863" href="#863">863</a>                     setValueCalled = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="864" href="#864">864</a>                 } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="865" href="#865">865</a>                     <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="866" href="#866">866</a> <em class="jxr_comment">                     * When a pane without a horizontal scroll bar was reduced</em>
<a class="jxr_linenumber" name="867" href="#867">867</a> <em class="jxr_comment">                     * and the bar appeared, the viewport should show the right</em>
<a class="jxr_linenumber" name="868" href="#868">868</a> <em class="jxr_comment">                     * side of the view.</em>
<a class="jxr_linenumber" name="869" href="#869">869</a> <em class="jxr_comment">                     */</em>
<a class="jxr_linenumber" name="870" href="#870">870</a>                     <strong class="jxr_keyword">if</strong> ((extent != 0) &amp;&amp; (oldX &lt; 0) &amp;&amp; (p.x == 0)) {
<a class="jxr_linenumber" name="871" href="#871">871</a>                         p.x += value;
<a class="jxr_linenumber" name="872" href="#872">872</a>                     }
<a class="jxr_linenumber" name="873" href="#873">873</a>                 }
<a class="jxr_linenumber" name="874" href="#874">874</a>             }
<a class="jxr_linenumber" name="875" href="#875">875</a>             viewport.setViewPosition(p);
<a class="jxr_linenumber" name="876" href="#876">876</a>         }
<a class="jxr_linenumber" name="877" href="#877">877</a> 
<a class="jxr_linenumber" name="878" href="#878">878</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> viewportStateChanged(ChangeEvent e) {
<a class="jxr_linenumber" name="879" href="#879">879</a>             syncScrollPaneWithViewport();
<a class="jxr_linenumber" name="880" href="#880">880</a>         }
<a class="jxr_linenumber" name="881" href="#881">881</a> 
<a class="jxr_linenumber" name="882" href="#882">882</a>         <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="883" href="#883">883</a>         <em class="jxr_comment">// PropertyChangeListener: This is installed on both the JScrollPane</em>
<a class="jxr_linenumber" name="884" href="#884">884</a>         <em class="jxr_comment">// and the horizontal/vertical scrollbars.</em>
<a class="jxr_linenumber" name="885" href="#885">885</a>         <em class="jxr_comment">//</em>
<a class="jxr_linenumber" name="886" href="#886">886</a> 
<a class="jxr_linenumber" name="887" href="#887">887</a>         <em class="jxr_comment">// Listens for changes in the model property and reinstalls the</em>
<a class="jxr_linenumber" name="888" href="#888">888</a>         <em class="jxr_comment">// horizontal/vertical PropertyChangeListeners.</em>
<a class="jxr_linenumber" name="889" href="#889">889</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> propertyChange(PropertyChangeEvent e) {
<a class="jxr_linenumber" name="890" href="#890">890</a>             <strong class="jxr_keyword">if</strong> (e.getSource() == scrollpane) {
<a class="jxr_linenumber" name="891" href="#891">891</a>                 scrollPanePropertyChange(e);
<a class="jxr_linenumber" name="892" href="#892">892</a>             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="893" href="#893">893</a>                 sbPropertyChange(e);
<a class="jxr_linenumber" name="894" href="#894">894</a>             }
<a class="jxr_linenumber" name="895" href="#895">895</a>         }
<a class="jxr_linenumber" name="896" href="#896">896</a> 
<a class="jxr_linenumber" name="897" href="#897">897</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> scrollPanePropertyChange(PropertyChangeEvent e) {
<a class="jxr_linenumber" name="898" href="#898">898</a>             String propertyName = e.getPropertyName();
<a class="jxr_linenumber" name="899" href="#899">899</a> 
<a class="jxr_linenumber" name="900" href="#900">900</a>             <strong class="jxr_keyword">if</strong> (propertyName == <span class="jxr_string">"verticalScrollBarDisplayPolicy"</span>) {
<a class="jxr_linenumber" name="901" href="#901">901</a>                 updateScrollBarDisplayPolicy(e);
<a class="jxr_linenumber" name="902" href="#902">902</a>             } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (propertyName == <span class="jxr_string">"horizontalScrollBarDisplayPolicy"</span>) {
<a class="jxr_linenumber" name="903" href="#903">903</a>                 updateScrollBarDisplayPolicy(e);
<a class="jxr_linenumber" name="904" href="#904">904</a>             } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (propertyName == <span class="jxr_string">"viewport"</span>) {
<a class="jxr_linenumber" name="905" href="#905">905</a>                 updateViewport(e);
<a class="jxr_linenumber" name="906" href="#906">906</a>             } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (propertyName == <span class="jxr_string">"rowHeader"</span>) {
<a class="jxr_linenumber" name="907" href="#907">907</a>                 updateRowHeader(e);
<a class="jxr_linenumber" name="908" href="#908">908</a>             } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (propertyName == <span class="jxr_string">"columnHeader"</span>) {
<a class="jxr_linenumber" name="909" href="#909">909</a>                 updateColumnHeader(e);
<a class="jxr_linenumber" name="910" href="#910">910</a>             } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (propertyName == <span class="jxr_string">"verticalScrollBar"</span>) {
<a class="jxr_linenumber" name="911" href="#911">911</a>                 updateVerticalScrollBar(e);
<a class="jxr_linenumber" name="912" href="#912">912</a>             } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (propertyName == <span class="jxr_string">"horizontalScrollBar"</span>) {
<a class="jxr_linenumber" name="913" href="#913">913</a>                 updateHorizontalScrollBar(e);
<a class="jxr_linenumber" name="914" href="#914">914</a>             } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (propertyName == <span class="jxr_string">"componentOrientation"</span>) {
<a class="jxr_linenumber" name="915" href="#915">915</a>                 scrollpane.revalidate();
<a class="jxr_linenumber" name="916" href="#916">916</a>                 scrollpane.repaint();
<a class="jxr_linenumber" name="917" href="#917">917</a>             }
<a class="jxr_linenumber" name="918" href="#918">918</a>         }
<a class="jxr_linenumber" name="919" href="#919">919</a> 
<a class="jxr_linenumber" name="920" href="#920">920</a>         <em class="jxr_comment">// PropertyChangeListener for the horizontal and vertical scrollbars.</em>
<a class="jxr_linenumber" name="921" href="#921">921</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> sbPropertyChange(PropertyChangeEvent e) {
<a class="jxr_linenumber" name="922" href="#922">922</a>             String propertyName = e.getPropertyName();
<a class="jxr_linenumber" name="923" href="#923">923</a>             Object source = e.getSource();
<a class="jxr_linenumber" name="924" href="#924">924</a> 
<a class="jxr_linenumber" name="925" href="#925">925</a>             <strong class="jxr_keyword">if</strong> (<span class="jxr_string">"model"</span> == propertyName) {
<a class="jxr_linenumber" name="926" href="#926">926</a>                 JScrollBar sb = scrollpane.getVerticalScrollBar();
<a class="jxr_linenumber" name="927" href="#927">927</a>                 BoundedRangeModel oldModel = (BoundedRangeModel) e.getOldValue();
<a class="jxr_linenumber" name="928" href="#928">928</a>                 ChangeListener cl = <strong class="jxr_keyword">null</strong>;
<a class="jxr_linenumber" name="929" href="#929">929</a> 
<a class="jxr_linenumber" name="930" href="#930">930</a>                 <strong class="jxr_keyword">if</strong> (source == sb) {
<a class="jxr_linenumber" name="931" href="#931">931</a>                     cl = vsbChangeListener;
<a class="jxr_linenumber" name="932" href="#932">932</a>                 } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (source == scrollpane.getHorizontalScrollBar()) {
<a class="jxr_linenumber" name="933" href="#933">933</a>                     sb = scrollpane.getHorizontalScrollBar();
<a class="jxr_linenumber" name="934" href="#934">934</a>                     cl = hsbChangeListener;
<a class="jxr_linenumber" name="935" href="#935">935</a>                 }
<a class="jxr_linenumber" name="936" href="#936">936</a>                 <strong class="jxr_keyword">if</strong> (cl != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="937" href="#937">937</a>                     <strong class="jxr_keyword">if</strong> (oldModel != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="938" href="#938">938</a>                         oldModel.removeChangeListener(cl);
<a class="jxr_linenumber" name="939" href="#939">939</a>                     }
<a class="jxr_linenumber" name="940" href="#940">940</a>                     <strong class="jxr_keyword">if</strong> (sb.getModel() != <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="941" href="#941">941</a>                         sb.getModel().addChangeListener(cl);
<a class="jxr_linenumber" name="942" href="#942">942</a>                     }
<a class="jxr_linenumber" name="943" href="#943">943</a>                 }
<a class="jxr_linenumber" name="944" href="#944">944</a>             } <strong class="jxr_keyword">else</strong> <strong class="jxr_keyword">if</strong> (<span class="jxr_string">"componentOrientation"</span> == propertyName) {
<a class="jxr_linenumber" name="945" href="#945">945</a>                 <strong class="jxr_keyword">if</strong> (source == scrollpane.getHorizontalScrollBar()) {
<a class="jxr_linenumber" name="946" href="#946">946</a>                     JScrollBar hsb = scrollpane.getHorizontalScrollBar();
<a class="jxr_linenumber" name="947" href="#947">947</a>                     JViewport viewport = scrollpane.getViewport();
<a class="jxr_linenumber" name="948" href="#948">948</a>                     Point p = viewport.getViewPosition();
<a class="jxr_linenumber" name="949" href="#949">949</a>                     <strong class="jxr_keyword">if</strong> (scrollpane.getComponentOrientation().isLeftToRight()) {
<a class="jxr_linenumber" name="950" href="#950">950</a>                         p.x = hsb.getValue();
<a class="jxr_linenumber" name="951" href="#951">951</a>                     } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="952" href="#952">952</a>                         p.x = viewport.getViewSize().width - viewport.getExtentSize().width - hsb.getValue();
<a class="jxr_linenumber" name="953" href="#953">953</a>                     }
<a class="jxr_linenumber" name="954" href="#954">954</a>                     viewport.setViewPosition(p);
<a class="jxr_linenumber" name="955" href="#955">955</a>                 }
<a class="jxr_linenumber" name="956" href="#956">956</a>             }
<a class="jxr_linenumber" name="957" href="#957">957</a>         }
<a class="jxr_linenumber" name="958" href="#958">958</a>     }
<a class="jxr_linenumber" name="959" href="#959">959</a> 
<a class="jxr_linenumber" name="960" href="#960">960</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">class</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">ViewportBorder</a> <strong class="jxr_keyword">extends</strong> AbstractBorder <strong class="jxr_keyword">implements</strong> <a href="../../../com/seaglasslookandfeel/DerivedColor.html">UIResource</a> {
<a class="jxr_linenumber" name="961" href="#961">961</a>         <strong class="jxr_keyword">private</strong> Insets insets;
<a class="jxr_linenumber" name="962" href="#962">962</a> 
<a class="jxr_linenumber" name="963" href="#963">963</a>         <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">ViewportBorder</a>(<a href="../../../com/seaglasslookandfeel/SeaGlassContext.html">SeaGlassContext</a> context) {
<a class="jxr_linenumber" name="964" href="#964">964</a>             <strong class="jxr_keyword">this</strong>.insets = (Insets) context.getStyle().get(context, <span class="jxr_string">"ScrollPane.viewportBorderInsets"</span>);
<a class="jxr_linenumber" name="965" href="#965">965</a>             <strong class="jxr_keyword">if</strong> (<strong class="jxr_keyword">this</strong>.insets == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="966" href="#966">966</a>                 <strong class="jxr_keyword">this</strong>.insets = SeaGlassLookAndFeel.EMPTY_UIRESOURCE_INSETS;
<a class="jxr_linenumber" name="967" href="#967">967</a>             }
<a class="jxr_linenumber" name="968" href="#968">968</a>         }
<a class="jxr_linenumber" name="969" href="#969">969</a> 
<a class="jxr_linenumber" name="970" href="#970">970</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> paintBorder(Component c, Graphics g, <strong class="jxr_keyword">int</strong> x, <strong class="jxr_keyword">int</strong> y, <strong class="jxr_keyword">int</strong> width, <strong class="jxr_keyword">int</strong> height) {
<a class="jxr_linenumber" name="971" href="#971">971</a>             JComponent jc = (JComponent) c;
<a class="jxr_linenumber" name="972" href="#972">972</a>             <a href="../../../com/seaglasslookandfeel/SeaGlassContext.html">SeaGlassContext</a> context = getContext(jc);
<a class="jxr_linenumber" name="973" href="#973">973</a>             SynthStyle style = context.getStyle();
<a class="jxr_linenumber" name="974" href="#974">974</a>             <strong class="jxr_keyword">if</strong> (style == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="975" href="#975">975</a>                 assert false : <span class="jxr_string">"SynthBorder is being used outside after the "</span> + <span class="jxr_string">" UI has been uninstalled"</span>;
<a class="jxr_linenumber" name="976" href="#976">976</a>                 <strong class="jxr_keyword">return</strong>;
<a class="jxr_linenumber" name="977" href="#977">977</a>             }
<a class="jxr_linenumber" name="978" href="#978">978</a>             context.getPainter().paintViewportBorder(context, g, x, y, width, height);
<a class="jxr_linenumber" name="979" href="#979">979</a>             context.dispose();
<a class="jxr_linenumber" name="980" href="#980">980</a>         }
<a class="jxr_linenumber" name="981" href="#981">981</a> 
<a class="jxr_linenumber" name="982" href="#982">982</a>         <strong class="jxr_keyword">public</strong> Insets getBorderInsets(Component c) {
<a class="jxr_linenumber" name="983" href="#983">983</a>             <strong class="jxr_keyword">return</strong> getBorderInsets(c, <strong class="jxr_keyword">null</strong>);
<a class="jxr_linenumber" name="984" href="#984">984</a>         }
<a class="jxr_linenumber" name="985" href="#985">985</a> 
<a class="jxr_linenumber" name="986" href="#986">986</a>         <strong class="jxr_keyword">public</strong> Insets getBorderInsets(Component c, Insets insets) {
<a class="jxr_linenumber" name="987" href="#987">987</a>             <strong class="jxr_keyword">if</strong> (insets == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="988" href="#988">988</a>                 <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> Insets(<strong class="jxr_keyword">this</strong>.insets.top, <strong class="jxr_keyword">this</strong>.insets.left, <strong class="jxr_keyword">this</strong>.insets.bottom, <strong class="jxr_keyword">this</strong>.insets.right);
<a class="jxr_linenumber" name="989" href="#989">989</a>             }
<a class="jxr_linenumber" name="990" href="#990">990</a>             insets.top = <strong class="jxr_keyword">this</strong>.insets.top;
<a class="jxr_linenumber" name="991" href="#991">991</a>             insets.bottom = <strong class="jxr_keyword">this</strong>.insets.bottom;
<a class="jxr_linenumber" name="992" href="#992">992</a>             insets.left = <strong class="jxr_keyword">this</strong>.insets.left;
<a class="jxr_linenumber" name="993" href="#993">993</a>             insets.right = <strong class="jxr_keyword">this</strong>.insets.left;
<a class="jxr_linenumber" name="994" href="#994">994</a>             <strong class="jxr_keyword">return</strong> insets;
<a class="jxr_linenumber" name="995" href="#995">995</a>         }
<a class="jxr_linenumber" name="996" href="#996">996</a> 
<a class="jxr_linenumber" name="997" href="#997">997</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isBorderOpaque() {
<a class="jxr_linenumber" name="998" href="#998">998</a>             <strong class="jxr_keyword">return</strong> false;
<a class="jxr_linenumber" name="999" href="#999">999</a>         }
<a class="jxr_linenumber" name="1000" href="#1000">1000</a>     }
<a class="jxr_linenumber" name="1001" href="#1001">1001</a> 
<a class="jxr_linenumber" name="1002" href="#1002">1002</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="1003" href="#1003">1003</a> <em class="jxr_javadoccomment">     * Handle keeping track of the viewport's view's focus</em>
<a class="jxr_linenumber" name="1004" href="#1004">1004</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="1005" href="#1005">1005</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">class</strong> <a href="../../../com/seaglasslookandfeel/ui/SeaGlassScrollPaneUI.html">ViewportViewFocusHandler</a> <strong class="jxr_keyword">implements</strong> ContainerListener, FocusListener {
<a class="jxr_linenumber" name="1006" href="#1006">1006</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> componentAdded(ContainerEvent e) {
<a class="jxr_linenumber" name="1007" href="#1007">1007</a>             <strong class="jxr_keyword">if</strong> (e.getChild() instanceof JTextComponent) {
<a class="jxr_linenumber" name="1008" href="#1008">1008</a>                 e.getChild().addFocusListener(<strong class="jxr_keyword">this</strong>);
<a class="jxr_linenumber" name="1009" href="#1009">1009</a>                 viewportViewHasFocus = e.getChild().isFocusOwner();
<a class="jxr_linenumber" name="1010" href="#1010">1010</a>                 scrollpane.repaint();
<a class="jxr_linenumber" name="1011" href="#1011">1011</a>             }
<a class="jxr_linenumber" name="1012" href="#1012">1012</a>         }
<a class="jxr_linenumber" name="1013" href="#1013">1013</a> 
<a class="jxr_linenumber" name="1014" href="#1014">1014</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> componentRemoved(ContainerEvent e) {
<a class="jxr_linenumber" name="1015" href="#1015">1015</a>             <strong class="jxr_keyword">if</strong> (e.getChild() instanceof JTextComponent) {
<a class="jxr_linenumber" name="1016" href="#1016">1016</a>                 e.getChild().removeFocusListener(<strong class="jxr_keyword">this</strong>);
<a class="jxr_linenumber" name="1017" href="#1017">1017</a>             }
<a class="jxr_linenumber" name="1018" href="#1018">1018</a>         }
<a class="jxr_linenumber" name="1019" href="#1019">1019</a> 
<a class="jxr_linenumber" name="1020" href="#1020">1020</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> focusGained(FocusEvent e) {
<a class="jxr_linenumber" name="1021" href="#1021">1021</a>             viewportViewHasFocus = <strong class="jxr_keyword">true</strong>;
<a class="jxr_linenumber" name="1022" href="#1022">1022</a>             scrollpane.repaint();
<a class="jxr_linenumber" name="1023" href="#1023">1023</a>         }
<a class="jxr_linenumber" name="1024" href="#1024">1024</a> 
<a class="jxr_linenumber" name="1025" href="#1025">1025</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> focusLost(FocusEvent e) {
<a class="jxr_linenumber" name="1026" href="#1026">1026</a>             viewportViewHasFocus = false;
<a class="jxr_linenumber" name="1027" href="#1027">1027</a>             scrollpane.repaint();
<a class="jxr_linenumber" name="1028" href="#1028">1028</a>         }
<a class="jxr_linenumber" name="1029" href="#1029">1029</a>     }
<a class="jxr_linenumber" name="1030" href="#1030">1030</a> }
</pre>
<hr/><div id="footer">This page was automatically generated by <a href="http://maven.apache.org/">Maven</a></div></body>
</html>

